Mr. Wang and his son, both looking very happy, ______ taking a walk in the park.

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Mr. Wang and his son, both looking very happy, ______ taking a walk in the park.

A. are

B. is

C. has

D. have

参考答案:

A 7.此题考查主谓的一致性及时态。And 连接两个主语,谓语动词用复数,其行为为现在进行时态。选项A是正确的。