1、【题目】Each year in the United States, many black teenagers _______ of school, either because they cannot keep up or they have to work to support their family.
选项：
A.goout
B.dropout
C.checkout
D.pullout
答案：
B
解析：
暂无解析
1、【题目】Inthefuture,more______shouldbeplacedontheeducationoftheyoung.
选项：
A.crisis
B.implications
C.impressions
D.emphasis
答案：
解析：
1、【题目】Othersarguethatsincetheearthhasenduredalongstringoficeagesinthelasttwomilliontothreemillionyears,anywarmingis________tobetemporary.
选项：
A.seemed
B.likely
C.tended
D.possible
答案：
解析：
1、【题目】SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
选项：
A.hewanted
B.hewanting
C.himtowant
D.hiswanting
答案：
解析：
1、【题目】It was three British sportsmen who ________ banned drugs.
选项：
A.werecatchingtaking
B.caughttotake
C.caughtintaking
D.werecaughttaking
答案：
D
解析：
暂无解析
1、【题目】Theassociationis________toraisingfundstohelptheblind.
选项：
A.conducted
B.committed
C.concentrated
D.concerned
答案：
解析：
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