摘要： For some time the expert people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking. A. is warned B. is warning C. has been warning D. has been warned
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For some time the expert __________ people of the health risks caused by passive smoking. He???? says he won't stop until all the smokers around him decide to quit smoking.
A. is warnedB. is warningC. has been warningD. has been warned
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For some time the expert __________ people of the health risks caused by passive smoking. He
says he won't stop until all the smokers around him decide to quit smoking.
A. is warned B. is warning C. has been warning D. has been warned
查看习题详情和答案>>
For some time the expert __________ people of the health risks caused by passive smoking. He says he won't stop until all the smokers around him decide to quit smoking.
- A.is warned
- B.is warning
- C.has been warning
- D.has been warned
For some time the expert __________ people of the health risks caused by passive smoking. He says he won’t stop until all the smokers around him decide to quit smoking.
| A．is warned | B．is warning | C．has been warning | D．has been warned |