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17 Neither Li Lei nor Han Meimei ＿＿＿ Harbin.
A. have been to
B. has been to
C. have gone to
D. has gone to
［答案］ B.
［析］ has been to 是去过某处。
18 It's cold today you'd better ＿＿＿ more coats.
A. put on
B. take off
C. to put on
D. to take off
［答案］ A.
［析］ 'd better 其后加不带to的不定式，而put on 为"穿上"。
19 Henry ＿＿＿ a birthday card for Sam yesterday.
A. has bought
B. buys
C. bought
D. will buy
［答案］ C.
［析］ 因句中的yesterday为表达过去的时间状语，所以应用过去时态。
20 When I got to the factory, the workers ＿＿＿ about the filim.
A. are talking
B. talked
C. were talking
D. have talked
［答案］ C.
［析］ 状语从句中所用的动词为过去时，则主句中也要与之呼应。而工人们在谈论电影为一长时间的动作，所以要用过去进行时。
21 No hurry, please ＿＿＿ your time.
A. take
B. bring
C. carry
D. catch
［答案］ A.
［析］ take one's time 慢慢来别着急。
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