home or at home? I usually arrive at home late in the afternoon. I usually arrive home late in the afternoon. Which one is correct?

Is there any mistake in this sentence? This is a proofreading. Dear Grandpa, Thank you for your letter. My school is organizing a basketball team and there's just a chance which I can join it. I'm little of course, but terribly quick and bravely. I think there may be two mistakes.

Must 'this morning' use with simple future? I know I can say 'This morning I will go to see the doctor.' But can I say 'This morning I cleaned my room'?

Why add 'minutes' when say exact time? Why not say nineteen past eight but say nineteen minutes past eight? If someone asks me: When will you leave for school? Can I answer by saying 'At nineteen minutes past eight.'?

Why is money an uncountable noun? Why is money an uncountable noun?

meaning of 'haven't got much' and 'haven't got any' I'm not sure the meaning. In my opinion, 'I haven't got much tea or coffee.' means I have tea and coffee but they are not enough for me. 'I haven't got any eggs.' means I have no eggs. Am I right?

is because/ was because? Here is a sentence. I'm not sure whether I use these tenses correctly. I missed my friend last night. Perhaps it is because we had done so many things together. I'd appreciate any reply.

makes/make, was/were? Why? The mayor of the city and the governor of the state (was, were) present at the conference. Danish bacon and eggs (makes, make) a good solid English breakfast. I'll be very appreciate it if you reply to me.

Whoever or whomever? To show our respect, we usually have to take our gloves off whoever we are to shake hands with. To show our respect, we usually have to take our gloves off whomever we are to shake hands with. Which sentence is correct?