Tom always_____.When I tell him a joke,he often lets out a loud_____.

问题描述:

Tom always_____.When I tell him a joke,he often lets out a loud_____.
A.laughs,laugh B.laugh,laugh C.laughs,laughing

C
第一个是做动词讲,是笑的意思,因为主语是TOM所以,动词用第三人称的形式,在laugh后面直接加S就可以了
第二个是做名词来讲,loud是形容词,大声的意思.
所以,后面要加laugh的名词形式,所以加ing就可以.选laughing即可