My father and my mother have been married for 30 years, and never once ______ with each other.
| A．they have quarrelled | B．did they quarrel |
| C．had they quarrelled | D．have they quarrelled |
Never in my wildest dreams ________these people are living in such poor conditions．
| A．I could imagine | B．could I imagine |
| C．I couldn’t imagine | D．couldn’t I imagine |
—Once a neighbour accused me ________ playing my radio too loudly .
—Oh, you had the right to defend yourself ______ the charge.
| A．of; against | B．for; of | C．against; for | D．for; against |
China has got a good ________ for fighting against the flu with its careful and smooth organization.
| A．reputation | B．influence | C．impression | D．knowledge |
—Bob, look what you have done! You ruined the experiment.
—It’s not my fault. I just carried out the instructions _____.
| A．as told | B．as telling me | C．as telling | D．as I told |
He asked us to __________him __________carrying through their plan.
| A．assist; with | B．help; to | C．assist; in | D．help; with |