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B、by C、from D、at
15、Young as he is, David has gained ____ rich experience in ____ society.
A、the; the B、a; 不填 C、不填；不填 D、不填；the
16、____ from endless homework on weekends, the students now find their own
activities, such as taking a ride together to watch the sunrise.
A、Freed B、Freeing C、To free D、having freed
17、——So you missed the meeting.
——____. I got there five minutes before it finished.
A、Not at all B、Not exactly C、Not especially D、Not really
18、——Do you mind if I smoke?
——____
A、Why not? B、Yes, help yourself
C、Go ahead D、Yes, but you’d better not19、——We must thank you for taking the trouble to cook us a meal.
——____.
A、With pleasure B、It doesn’t matter
C、It was no trouble at all D、By all means
20、____ the temperature might drop, coal was prepared for warming.
A、To consider B、Considered
C、Considering D、To be considered
21、——Tom, you are caught late again.
——Oh, ____.
A、not at all B、just my luck
C、never mind D、that’s all right
22、——What do you think of the concert?
——I really enjoy it. I didn’t expect it was ____ wonderful.
A、as B、more C、most D、very
23、The engineers made two big plans for the dam, ____ was never put in force.
A、one of them B、which C、one of which D、every one of which
24、I have no one ____ me, for I am a new comer here.
A、help B、helping C、to help D、to have helped
25、The little girl couldn’t work the problem out. She wasn’t ____ clever.
A、that B、much C、enough D、too
26、Listen! His family must be quarrelling, ____?
A、mustn’t it B、isn’t it C、aren’t they D、needn’t they
27、The police have ____ power to deal with such matters by ____ law.
A、