15. A storm __________by a calm.
A. is often being followed B. was often followed
C. is often followed D. has often been followed
这题为什么选择A?
人气：417 ℃ 时间：2020-06-13 21:31:11
解答
be+(always,often等等表示频繁发生的副词)+doing 表示经常性发生的事情
A storm is often being followed by a calm
按字面翻译的话就是:平静总是跟在暴风雨之后
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