By the time he ____ at the party, all the other guests ____ playing games.A．arri
题型：不详难度：来源：
By the time he ____ at the party, all the other guests ____ playing games.| A．arrived; had begun | B．arrived; began | | C．had arrived; began | D．had arrived; have begun |
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答案
| A |
解析
| 考查by的时态。By的用法是，by后面跟什么时态，主句就采用什么完成时，总之by是完成时的标志。 所以选择A |
举一反三
| In 89 BC, Pompeii became a rich and busy city and near the city ____ a volcano. |
The living room is clean and tidy, with a dining table already for a meal to be cooked.| A．laid | B．laying | C．to lay | D．being laid |
|
Put on your coat! I you down to the doctor.| A．take | B．am taking | C．took | D．have taken |
|
He collected information on 1,000 people, whose IQ when they were ten years old.| A．is tested | B．has tested | C．would test | D．had been tested |
|
--- Haven’t I told you that you should be home earlier?
--- Yes, but I home earlier than I usually do.| A．was coming | B．will come | C．came | D．had come |
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