We to close the windows before we left the lab.A. tellB. toldC. are toldD. were told

问题补充：

We to close the windows before we left the lab.

A. tell

B. told

C. are told

D. were told

答案：

A. tell

B. told

C. are told

(答案→)D. were told

解析：主语We和tell之间是动宾关系，根据left，可知要用一般过去时，所以用一般过去时的被动语态。选D。