题目内容
20.In such dry weather,the flowers will have to be watered if they _______.( )A. | have survived | B. | are to survive | C. | would survive | D. | will survive |
分析 这么干燥的天气,如果要让这些花活下来不浇水可不行.
解答 答案:B
解析:根据句意可从时间上排除现在完成时A,和过去将来时C;D 是一般将来时,不可以用在if 引导的条件句中;if 从句中可用be+to do(不定式) 表将来,故本题答案为B选项.
点评 本题考查条件状语从句,做此类题目时先要根据句意确定从句的时态再选出正确的答案.
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