Many teens don't get enough sleep because they have too much homework to do, which ________ them up at night.
| A．makes | B．breaks |
| C．turns | D．keeps |
Generally speaking, ______ according to the directions, the drug has no side effect.
| A．when taken | B．when taking | C．when to take | D．when to be taken |
My daughter, _________ all kinds of meat, would not like to eat any vegetable, which worries me a lot.
| A．devoted to | B．addicted to | C．accustomed to | D．exposed to |
The wide spread of super hybrid rice around the world ______ the lives of millions and millions of people suffering from hunger to a great level.
| A．has improved | B．is improving | C．improved | D．has been improving |
If you, the special one in the world, want to show your ______ personality, this T-shirt is exactly what you are looking for.
| A．calm | B．unique | C．straight | D．constant |
To fetch water before breakfast seemed to me a rule ______.
| A．to never break | B．never to have broken |
| C．never to be broken | D．never to be breaking |