Question

【题目】Look!They about the solution to the network problems again.

A. argueB. are arguingC. arguedD. were arguing

Answer 1

【答案】B

【解析】

句意：看，他们又在讨论解决网络问题的办法。

A. argue争吵；原形；B. are arguing正在争吵，现在进行时；C. argued争吵，过去式；D. were arguing争吵，过去进行时。根据Look!可知下文是现在进行时，其结构是is/are doing的形式，主语是they，be动词用are。根据题意，故选B。