21.He climbed up into the tree and picked all the fruit __________ reach.
A. by
B. out of
C. at
D. within
22. Would you please step __________ and have a cup of coffee with us?
A. aside
B. in
C. back
D. on
23. __________ this medicine regularly; it will protect you against a return of the illness.
A. Take
B. Taking
C. To take
D. Taken
24.__________ the contract provides otherwise, it is the buyer’s legal duty to collect the goods from the seller’s premises.
A. Although
B. Unless
C. Provided
D. Considering
25. I don’t believe him; he __________ be serious.
A. can’t
B. needn’t
C. mayn’t
D. mustn’t
26. __________ past performances, he is not likely to do well in his exams.
A. Judged from
B. To judge from
C. Judge from
D. Judging from
27. He is a criminal from justice trying to avoid __________ by the police.
A. having been caught
B. being caught
C. catching
D. to be caught
28. During the meeting, __________ begun to speak when the audience interrupted him.
A. hardly he had
B. hardly had he
C. no sooner had he
D. no sooner he had
29.Water is water __________ it is still or in waves.
A. if
B. which
C. whether
D. what
30.__________ children, the importance of games should not be ignored in the life of adults.
A. With
B. Regarding
C. For
D. As with
