Jack wasn't saying anything, but the teacher smiled at him __________ he had done something very clever.
| A．as if | B．in case |
| C．while | D．though |
Please call again. Jim _______ a bath just now.
| A．has had | B．was having |
| C．is having | D．has |
“Mike is not coming to the football game this afternoon.” “It’s a shame！ He _______！”
| A．promises | B．promised |
| C．will promise | D．had promised |
“John took a photograph of you just now.” “Oh, really？ I ______.”
| A．didn’t know | B．wasn’t knowing |
| C．don’t know | D．haven’t known |
When I arrived at the company, the manager ______, so we had only time for a few words.
| A．just went away | B．had gone away |
| C．was just going away | D．has just gone away |
The thief tried to break away from the policeman who ______ him, but failed.
| A．has held | B．had held |
| C．was holding | D．would hold |