Why did they keep trying _________ they must have known it was hopeless?
| A．if | B．because | C．when | D．whether |
He didn’t make ______ at all in yesterday’s negotiation. What happened to him?
| A．an apology | B．a change | C．an appearance | D．a promise |
—Oh, let’s go to that restaurant right now for lunch!
—______ They serve food 24 hours a day.
| A．Hurry up! | B．Take your time |
| C．No way! | D．It doesn’t matter. |
She seems_happy in her new job since there is nothing troublesome to bother her.
| A．generally | B．flexibly | C．reasonably | D．deliberately |
The recent research attempts tothe effectiveness of different drugs used for the new virus.
| A．cover | B．guarantee | C．estimate | D．evaluate |
It isfor all drivers not to drive after drinking, otherwise, they would be put into jail.
| A．compulsory | B．satisfactory | C．unwilling | D．demanding |