| As is known to us all, the Sahara Desert is a natural _____ between north and central Africa. |
A. barrier B. routine C. garment D. basis |
| I think that the _____ behind the decision is the desire to improve our customer service. |
A. budget B. technique C. motivation D. conscience |
| _____ I say Clancy is a smart boy, he still needs to work hard to achieve his goal. |
A. Then B. When C. While D. As |
| — May I serve your dishes, sir? — _____. |
A. No, go ahead B. Yes, please C. Hurry up D. Yes, help yourself |
| Could you give me a hand? It seems that my strength has ______. |
A. used up B. been given out C. run out D. been run out |
| He asked me how much he _______ me and I told him that the petrol pump had shown $ 15. |
A. paid B. owed C. offered D. provided |
| — How did you find your visit to the museum, Jane? — ________. |
A. By taking a No.3 bus B. Oh, wonderful, indeed C. I went there alone D. A classmate of mine showed me the way |
| I have no ______ to the plan, so long as it would not cost too much. |
A. refusal B. comment C. idea D. objection |