People develop _______ preference for a particular style of learning at _______ early age and these preferences affect learning.
| A．a; an | B．a; 不填 |
| C．不填; the | D．the; an |
Most students think this book is useful as it ____ all the basic grammar rules they need to know.
| A．deals | B．covers | C．says | D．teaches |
--- I apologize for not being able to join you for dinner.
--- ______.
| A．Go ahead | B．Not to worry. |
| C．That’s right | D．Don’t mention it. |
The jewels that the rich lady was wearing that evening must be ______.
| A．cost fortune | B．worth a fortune |
| C．cost a fortune | D．worth fortune |
When you go abroad for further study, you should learn to adapt to the ______ of the destination country.
| A．customs | B．habits | C．interests | D．instructions |
How long do you think ______ the Microsoft brings out a new product?
| A．it will be before | B．will it be until |
| C．will it be when | D．it will be that |