2012大学英语四级状语从句真题训练（三）

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2012大学英语四级状语从句真题训练（三）
1._____ you decide to take up, you should try to make it a success.(94.6/62)
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) j5 J6 J0 ]; ?' w; u7 ^$ O    A. If only     B. Unless     C. Whatever      D. Whenever
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    2.Certain programs work better for some_____ for others.(95.1/50)
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    A. and      B. than      C. as      D. but
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    3.Scientists say it may be five or ten years_____ it is possible to test this medicine on human patients.(95.6/54)
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    A. since      B. before      C. after     D. when
   
8 ~" q5 |- S2 p; d2 {8 l& o    4.Doing your homework is a sure way to improve your test scores, and this is especially true_____ it comes to classroom tests.(96.1/36)
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+ g- r  S7 \" W6 o    A. when      B. since     C. before      D. after
   
( L( g6 V, w9 l' l    5.Careful surveys have indicated that as many as 50 percent of patients do not take drugs_____ directed.(96.1/37)
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5 M+ b, F+ X( f5 H' f/ T    A. like     B. so     C. which      D. as
答案：CBBAD