45. The population of China ______ to many times what it was in 1949, and most of its population ______ farmers.
| A．have grown; are | B．has grown; are | C．has grown; is | D．have grown; is |
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Please don’t do anything harmful ________ our nature, or we humans will have no ________ each other.
| A．to, fun about | B．for, fun with | C．for, fun about | D．to, fun with |
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.What you said just now ________me of that American professor.
| A．mentioned | B．informed | C．reminded | D．memorized |
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.--- Must I go there right now?
--- No, you_________.
| A．don’t need | B．mustn’t | C．don’t have to | D．hadn’t better |
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My younger cousin is now on ______ diet. She is trying to lose ________weight.
| A．/; / | B．a ; / | C．the; a | D．the; the |
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You must keep ____ in mind _____ your are a student in this school and should obey the school rules.
| A．it ; that | B．everything ; which | C．such ; as | D．something; because |