摘要： - Haven’t they moved into the house yet? - No. Although they the room all day long, it will be finished next Monday. A. have been painting B. have painted C. are painting D. were painting
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The engineers must have worked out the design by the end of last week，_______？
A. mustn’t they B. hadn’t they ?
C. haven’t they D. didn’t they?
查看习题详情和答案>>— large number of trees have been stolen from the forest，haven’t they?
—Yes. number of them is 26,000.
| A．The；The | B．A；The |
| C．A；A | D．The；/ |
This is the first time that your parents have been abroad, ______?
A. haven’t they B. hasn’t it C. aren’t they D. isn’t it
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Most of the students have hardly ever been to the Grand Canyon, __ ?
|
A．haven’t they |
B．have they |
C．aren’t they |
D．are they |
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