Listen to the two girls by the window. What language ________?

Listen to the two girls by the window. What language ________?

A.did they speak

B.were they speaking

C.are they speaking

D.have they been speaking

答案及解析: C

解析:

句意:听靠窗户的那两个女孩,她们讲的是什么语言?本句考查进行体的未完性。