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 |
The custom of arranged marriages still ________ in many countries.
| A．appears | B．lives | C．exists | D．lies |
Jack was born in a small village and _________ in a poor family.
| A．brought up | B．turned up | C．taken up | D．come up |
If your knowledge can be _________ with my experience, we are sure to succeed.
| A．joined | B．united | C．connected | D．combined |
—Are you satisfied with her answer? —Not at all. It couldn’t have been ________.
| A．any worse | B．much better | C．so bad | D．the worst |
—Do you have _______ sweet tooth?
—I used to, but now I’m on _______ diet.
| A．a; the | B．/; a | C．/; / | D．a; a |