单项选择题
M：Will the lecture begin at 1：40 or 2：00 o’clock W：No, it begins at 1：30 and ends at 3：00 o’clock．
A．At 1：30． B．At 1：40． C．At 2：00． D．At 3：00．
A. Wash his coat. B. Buy him a coat. C. Help him with his work. D. Finish the letter by 5 o’clock.
A. She can’t find time to help the man. B. The other students may also give some help. C. The man should help the other students. D. They will have a free day when the man is moving.