2. 考研
  3. Greater efforts to increase agricultural production must be made if food shortage ______ avoided.

Greater efforts to increase agricultural production must be made if food shortage ______ avoided.

admin2008-12-26  27
问题 Greater efforts to increase agricultural production must be made if food shortage ______ avoided.
选项 A、is to be
B、can be
C、will be
D、has been
答案A
解析 本题考查考生对于be to do sth.结构的掌握。当be to do sth.结构用于条件句时，意为"如果…的话，设想"等。
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考研英语一

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