You _________leave the window open. It’s so cold.
| A．mustn’t |
| B．needn’t |
| C．mightn’t |
| D．won’t |
At the meeting they discussed three different ______to the study of mathematics.
| A．approaches | B．means | C．methods | D．ways |
The ______on his face told me that he was angry.
| A．impression | B．sight | C．appearance | D．expression |
To make members of a team perform better, the trainer first of all has to know their _____ and weaknesses.
| A．strengths | B．benefits | C．techniques | D．values |
Always read the _____on the bottle carefully and take the right amount of medicine.
| A．explanations | B．instructions | C．descriptions | D．introductions |
—If you like I can do some shopping for you.
— That’ s a very kind _______.
| A．offer | B．service | C．point | D．suggestion |