【单选题】
____ in the office had made a mistake, and the firm regretted causing the customer inconvenience.
【单选题】
Theres the bell; someone is at the door.
【单选题】
A good friend is someone _____makes you ______.
【单选题】
It s surprising that this idea took so long to _______.
【单选题】
Someone is coming here. Who_____ it be?
【单选题】
There is [填空] old book.[填空] old book is Doctor Wangs.
【单选题】
It took a lot of imagination to come up with such an _____plan.
【单选题】
_____ that it was going to rain, he took a raincoat with him.
【单选题】
Prof. Lee took ___________ the chairmanship of the committee.
【单选题】
Although Jack made a foolish mistake, we __________ at him.
②
oughtn’t to have laughed