2. 职称英语
  3. The road is wet. It ______ last night.A、should have rainedB、must have rainedC、

The road is wet. It ______ last night.A、should have rainedB、must have rainedC、

游客2024-07-20  54
问题 The road is wet. It ______ last night.
选项 A、should have rained
B、must have rained
C、could have rained
D、must rain
答案 B
解析 must与动词的完成时态连用，表示对过去的情况进行肯定的猜测。如表示否定猜测，则用can’t+动词的完成形式。
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