You needn’t take your shoes off when you enter someone’s house in Australia , _____ , of course , they’re very dirty .
| A．if | B．except | C．when | D．unless |
14. With some books badly needed_________, she hurried to the bookstore.
| A．buying | B．bought | C．to buy | D．Buy |
13. --May I put my luggage on the seat beside you, sir?
--__________.
| A．Sure, with pleasure | B．Oh, please yourself |
| C．Well, never mind | D．It’s my pleasure. |
12.So absorbed__________in her work that she didn't realize I was behind her.
| A．did she | B．was she | C．she did | D．she was |
11.It will take us another five years______the construction of all the 121 roads is completed.
| A．when | B．since | C．before | D．After |
10. Mr. White was so angry at all______Bill was doing________he walked out.
| A．that; which | B．that; that | C．what; that | D．which; that |