Question

We ______ to close the windows before we left the lab.

1. A.
   tell
2. B.
   told
3. C.
   are told
4. D.
   were told

Answer 1

D
考查被動(dòng)語(yǔ)態(tài)的用法。被動(dòng)語(yǔ)態(tài)的結(jié)構(gòu)形式為：be+過(guò)去分詞，因此可排除A、B。由時(shí)間狀語(yǔ)可知，本句用過(guò)去時(shí)態(tài)，故選D。