单项选择 适中0.65 引用3 组卷260
—Where is Mother?
—She is in the kitchen. She ______ the housework all morning.
—She is in the kitchen. She ______ the housework all morning.
| A．is doing | B．was doing |
| C．has done | D．has been doing |
2010·河南·一模
类题推荐
Tom ______ in the library every night over the last three months．
| A．works | B．worked |
| C．has been working | D．had worked |
I ____ about what you’ve said and I’ve decided to take your advice.
| A．thought | B．have been thinking |
| C．was thinking | D．was thinking |
The cost of living recently _____ steadily because of epidemic of COVID- 19, leading some people to drop out of the big city race.
| A．is climbing | B．is being climbed | C．has been climbing | D．has been climbed |
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