(单选题)

—Look! Mom ______ so much delicious food for us.
—Yes. She has been busy for the whole morning.

A.cooks

B.was cooking

C.has cooked

D.had cooked

参考答案：C

参考解析：

考查现在完成时。句意：“看，妈妈为我们做了这么多好吃的。”“是的，她都忙活一早上了。”从题意来看，cook的动作已经发生了，故A项错误；B项为过去进行时，时态错误；C项为现在完成时，指的是妈妈已经给我们做了这么多好吃的，一早上忙活的成果；D项为过去完成时，该题没有过去的时间点，所以没有用过去完成时的条件。故选C。

知识点：

看好课

—Look! Mom ______ so much delicious food for us.—Yes. She has been busy for the whole morning.

—Look! Mom ______ so much delicious food for us.
—Yes. She has been busy for the whole morning.