—How much do you spend the new boots? —They me 50 yuan.
| A．buying; cost | B．to buy; pay | C．buying; spend | D．buy; take |
We should do we can those e ndangered animals.
| A．that ; to save | B．which; save |
| C．that; save | D．what; to save |
Which of the following signs can be seen on the door of a shopping center?
A． |
B． |
C． |
D． |
The boy is busy ________ tomorrow’s lesson.
| A．worked on | B．preparing for |
| C．to work for | D．getting preparing to |
Hurry up! The match for ten minutes.
| A．has begun | B．had begun |
| C．has been on | D．began |
—I was told to be here before seven.
— Oh, you . I'm sorry for not telling you that we have changed the plan.
| A．mustn't | B．can't |
| C．won't | D．needn't |