—You see, I’m poor in physics and you are not good at chemistry, and……
— That’s _______ we should help each other.
A. when B where C. how D. what
The population of China is larger than ______ of any other country in the world.
| A．that | B．it | C．one | D．this |
— Do you know who left the lights on all night long?
— It seems that Zhang Peng is ______. He is the last one ______.
| A．blaming; leaving | B．blamed; left |
| C．to blame; to leave | D．to be blamed; to be left |
— How about your journey to Mount Emei?
— Everything was wonderful except that our car _______ twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |
The students ________ from the whole class are expected to bring us honor in this school sport meeting.
| A．selecting | B．selected |
| C．to select | D．having selected |
_________ you take an active part in physical activity ______ be able to keep fit and stay healthy.
| A．Only if; you will | B．Only if; will you |
| C．Unless; you will | D．Unless; will you |