题目内容
The light is still on. He _____ to turn it off when he _____ the room.
| A.may forget: leave | B.must have forgotten : left |
| C.may forget : have left | D.could have forgotten : left |
B
略
练习册系列答案
相关题目
题目内容
| A.may forget: leave | B.must have forgotten : left |
| C.may forget : have left | D.could have forgotten : left |