There are so many kinds of pens in the shop that I can’t decide________．
| A．when to buy |
| B．where to buy |
| C．what to buy |
| D．which to buy |
----She is_______ shy _______ she always keeps quiet.
----Yes. Her face turns red when she talks to other people.
| A．so, that | B．too, to |
| C．such, that | D．so, to |
— ___________ do you use the Internet?
— Not often, twice a month.
| A．How long | B．How |
| C．How often | D．How much |
— I can’t open this door, Jack. Could you give me a hand?
—_________.
| A．Thank you a lot. | B．Here you are. |
| C．That’s all right. | D．Of course. |
— Thanks so much for helping a lot!
— ______.
| A．It’s nice of you to say so |
| B．Oh, you’d better not |
| C．Not at all |
| D．With pleasure |
--- What ________ the number of the students in your school?
--- About two thousand. A number of them __________ from England.
| A．is; is | B．are; is |
| C．is; are | D．are; are |