. The biggest problem for most plants, which ___ just get up and run away when threatened, is that animals like to eat them.
| A．shan’t | B．can’t |
| C．needn’t | D．mustn’t |
However busy he is, the young man will go to the country to see his granny _____.
| A．every few days | B．every a few days | C．each few days | D．each a few days |
The boy, who admitted _____ in the exam, promised the teacher that he would work hard at his lessons.
| A．cheat | B．to cheat | C．cheated | D．cheating |
In 1998, when he was only 19, Bill _____ to 5 years in prison for his acts of violence.
| A．sentenced | B．had sentenced | C．was sentenced | D．had been sentenced |
I failed in the job interview and only then _____ the importance of learning English well.
| A．I realized | B．I had realized | C．did I realize | D．had I realized |
The audience waited until the curtain rose and then laughter at the sight of the funny actor.
| A．burst out | B．burst into | C．broken into | D．began with |