21. ---It looks heavy. Can I give you a hand?
---_______.
| A．No, thanks | B．Yes, my pleasure | C．No, never mind | D．Yes, I do |
Gillard's ride totop of Australian politics wasrough one.
| A．不填; a | B．the; a | C．a; the | D．a;不填 |
The key you have just gotthe front door.
| A．is used to opening | B．is used to be opened |
| C．is used to being opened | D．is used to open |
You shouldn’t go out without a coat , it’s rather cold .
| A．unless | B．even though | C．however | D．since |
-----Could you do me a favor and take these books to my office?
-----Yes, _____.
| A．for pleasure | B．I could | C．my pleasure | D．with pleasure |
-----Have you been to New Zealand?
-----No, I’d like to, _____.
| A．too | B．though | C．yet | D．either |