The boss has given everyone a special holiday, so we _____ go to work tomorrow.
| A．can’t | B．mustn’t | C．needn’t | D．shouldn’t |
. —On the contrary, I think it is the mother, rather than her children, _________to blame.
—I agree with you.
| A．what is | B．that is | C．who are | D．that are |
_________that we should look after the three dogs three times, my mother left home.
| A．Mentioning | B．Having been mentioned |
| C．Having mentioned | D．Mentioned |
He was so deep in thought, thinking of the problem _________he knocked into the tree without noticing it.
| A．when | B．while | C．because | D．that |
He didn’t put the things_________they belonged, for_________he got his punishment.
| A．which; that | B．what; this |
| C．that; whose | D．where; which |
With the decision _________, the members present at the meeting were dismissed.
| A．to make | B．to be made |
| C．made | D．having made |