— Have you ever visited the Water Cube?— Yes. When I served as a volunteerin Bei
题型:安徽省模拟题难度:来源:
— Have you ever visited the Water Cube? — Yes. When I served as a volunteerin Beijing, I it twice. |
[ ] |
A. have visited B. visited C. had visited D. had been visiting |
答案
B |
举一反三
I had been working on math for the whole afternoon and the numbers before my eyes. |
[ ] |
A. swim B. swum C. swam D. had swum |
After Jack had sent some e-mails, he _______ working on his project. |
[ ] |
A. had started B. has started C. started D. starts |
— Kevin, you look worried. Anything wrong? — Well, I____a test and I"m waiting for the result. |
[ ] |
A. will take B. took C. had taken D. take |
Only when the European countries" financial system broke down _____to take measures to deal with those problems. |
[ ] |
A. did they decide B. they decided C. they had decided D. had they decided |
The president hopes that the people will be better off when he quits than when he_______. |
[ ] |
A. has started B. starts C. started D. will start |
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