公共英语一级

单选题Please be quiet!I can’t hear what the speaker_________．

A．is saying
B．has said
C．said

参考答案：A进入在线模考
句意：请安静!我听不见讲话人在说什么。本题考查的是时态呼应的用法。主句谓语动词使用的是一般现在时态，从句的时态应与之呼应，用一般现在时或现在进行时。故A正确。
【知识拓展】根据英语时态呼应的原则，当主句谓语动词使用一般过去时态时，某些从句的谓语动词的时态要作相应的调整，即一般现在时改为一般过去时，一般将来时改为过去将来时。例如：He said he was wron9．他说他错了。She told me Mr.Zhang would be back the next day．她跟我说过张先生第二天回来。

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