China's population is expected to increase to about 1.5 billion in 2040, ______it will start to decline slowly.
| A．where | B．which | C．on which | D．after which |
The wrong you have done to him is terrible，________， in my opinion，you should apologize to him.
| A．which | B．that |
| C．what | D．for which |
Those who have ________ floods and sandstorms know the importance of
environmental protection.
| A．gone over | B．gone through |
| C．got through | D．got over |
You'd better ________ some money for special use.
| A．pick up | B．set aside |
| C．put off | D．give away |
To ________ it simply, if you don't apologize to him，you will lose this friend.
| A．put | B．make | C．speak | D．talk |
My suggestion is that you ________ much meat.
| A．wouldn't take | B．shall not take |
| C．not have | D．won't have |