1. It was a clear and sunny weather. I wonder if the article is needed here. A native speaker told me this expression is very common in Canada. 2. It went to a corn field and saw the corns were big and plentiful. The word corn is not countable when it refers to the corn crop. I want to know if the sentence above is ok. Countable or uncountable nouns often sound very flexible. Anyone coluld help explain? Thanks in advance.

They ran across their yard and raced up the steps, tagging the front door. I wonder what tagging here means? Should it be tugging? Anyone could help figure it out? THX.

"We can't just tell. We have to show you," said the pupils. Does just here mean this moment or completely？ Thank you all.

Some balanced swords on their hands. What does balance here mean? Thanks in advance

Here are two girls that one pretends to be a salesman and the other acts like a shopper. Shouldn't the subtitle be: being a customer and a salesman? Thanks in advance.

Does anyone who speaks Enlgish have a plan to travel to Suzhou,China recently? Here are two spare rooms avaliable in one month and I would like you to stay for free. I am also like to be your tour guide and teach you some Chinese and I am sure my English is not skilled but good enough to introduce some interesting things to you here. I wish you a great journey in advance.

What do you call these gray beans? They are grown on yam vines.

A bullfrog (Part 1) I had never seen such a big frog before I met this one. That day, while I was having a jog along the lake where I lived nearby. It is not unusual to encounter a toad or a general frog, jumping or crawling around the lakeshore. But as I spotted this guy, I stopped with a bit shocked. A clear loud splash attracted me and I found that there was right lying a huge frog——I was pretty sure it was the most biggest I had ever seen. With two big round eyes and a pointy mouth, it stayed in the grass and water covered its half bottom body. Its back was spotted with black and gray dots. In my experience, the native frogs in China never look like this. They have bright green strips instead. Moreover, they are impossible to have such a gigantic shape. Meanwhile, it was not a toad. Toads always have ugly bumps on their skin that often make people feel scared and disgusting. So I wondered what it exactly was. Then I took out my smartphone and looked up the phrase——huge frog on Internet. Soon I learned it was a bullfrog. "Such a thing is a bullfrog?" I said to myself. Indeed, I had eaten the meat of bullfrogs before, but I never saw a living one and never knew what it looked like. The explanation said bullfrogs were found in North America, but these years they are introduced by many counties for their economic value——the meat. But at the new habitats, there are not natural enemies and they have become terrible biological invaders. China is also not an exception. "Will I capture and take it home?" I murmured. Of course, I didn't want to kill it, but if I took it home, how could I deal with it? All in all, leaving it here was not correct. So I looked around and found a plastic bag at a trash can. When I came back, the bullfrog was disappeared. "A clever guy," I thought. As I started walking away, there was something moving a bit in the grass near the water. A bullfrog:

A bullfrog (Part 2) "Aha," I exclaimed. "I am going to get you, little smarty!" I made the bag in a net shape and charged at the agile, slimy creature. Meanwhile, it leaped up, but it just landed into the bag. Then it began struggling up and down inside with full strength to try to escape. "No wonder people call it a bullfrog," I thought. "It is really as strong as a bull." I could not even hold the bag with one hand. As soon as I got home, I put it into a big pail. My daughter came and yelled, "I like it, would you keep him for me as a pet?" "As a pet?" I said. I didn't even finish speaking when the prisoner leaped out of the pail and fled into a corner of the balcony, where some flowerpots lined. After spending several minutes, I got it back and put a lid on the pail. "We leave a little gap so that it can breathe," I said to my daughter, showing dirty hands to her. "You see——he is breathing," I pointed at the big jaw of the bullfrog, which was swelling and shrinking in turns. Of course I was not sure if it was he or she. The explanation said that only male bullfrogs croak, and I never heard it did this, so I thought it should be she. "Do you really want to keep it as a pet?" I asked her. "Yes, pretty sure!" she nodded. "Why? Isn't it too big and scaring?" I said in doubt. "It is funny looking at you catching this guy!" she replied and laughed. I shook my head and laughed too. "At least you don't need to walk your frog every day outside. You just need to move the lid away. Actually, I mean it will give you a good walk as well just on the balcony!" Then we both burst out laughing again. A general frog in China: