what does 40 man-hours mean? 40 man-hours means (a) work done by 40 workers in 40 hours (b) 1 worker in 40 hours?

please help me check this sentence it is mainly because of /due to the flaw of W group's produce misleading.

here is a chioce question.i am not sure the answear. I would say that the Government () more worried than the people. a. are b. is c. were. D. was here chooses A or B?

to make sure a person in a polite manner. If i want to make sure that man's identity,so i should ask in this way: Sir ,is this professor Kelek from London? in such way will be politely and suits for the language usage of western ,right? I should not ask :Sir are you professor Kelek from London? using the second person to ask is rude, right?

Parliament stand prorogue. this sentence is from a dictonary.I have a little confution .As I know both stand and prorogue are verbs,how could this sentence is right?

a usage of noun a seven-years child ,if this phrase is correct, then ,He is seven-year old. And he is seven-years old.these two sentences are correct,right?

here is a judgment about Jane Eyre. This is not to suggest that Jane Eyre didn't have flaws.She continues to call her love interest "master",which is pretty bizarre,She can be semi-subservient to him. Jane Eyre didn't have flaws. Here uses the past tense,coz Jane Eyre lived in the past, and to describe Jane ,so uses didn't. She continues to call her love interest "master",which is pretty bizarre,She can be semi-subservient to him. Here uses the Present tense,because it want to tell us something about Jane Eyre,and it had existed, so uses the present tense ,will be fine.

Please help checking these sentences. Why was I born? I was born to dream. Or why am I born? I am born to dream. The second group sentence is correct,right?

wish or wishing you happiness today,tomorrow and always.here uses wish or wishing?