He was deep in thought with his eyes_____ on the ceiling.
| A．fixed | B．fixing | C．fix | D．to be fixing |
To pass the driving test, Alice had a busy month __________ driving the car.
| A．to practise | B．practising | C．practised | D．practice |
We do have the most supportive parents and teachers, ________will make a difference to our study, unless all of us make every effort .
| A．none of them | B．all of them |
| C．none of whom | D．all of whom |
Only when __________ senior high school __________ to show a great interest in poems.
| A．did I enter; did I begin | B．did I enter; I began |
| C．I entered; I began | D．I entered; did I begin |
---Why are you still here? Everybody has gone to attend the lecture by the president.
--Oh, I ___________ about it!
| A．wasn’t informed | B．hadn’t been informed |
| C．haven’t informed | D．didn’t inform |
Mr. Duncan raised an unnecessary question __________ he then failed to find an answer.
| A．to which | B．for which | C．with which | D．by which |