单项选择题

The committee () the problem for a whole afternoon but they have not yet reached an agreement.

A. has discussed
B. has been discussing
C. are discussing
D. have been discussing

<上一题 目录 下一题>
热门 试题

单项选择题
Other medical technology groups are working on () telemedicine to rural care,

A. applying
B. supplying
C. replying
D. implying
单项选择题
Would you please keep silent The weather report () and I want to listen.

A. is broadcast
B. is being broadcast
C. has been broadcast
D. had been broadcast
相关试题