摘要： The lake used to be polluted, but now something to make it clear again. A. is being done B. does C. is doing D. is done
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34. The lake used to be polluted, but now something_____ to make it clear again.
A. is being done B. does C. is doing D. is done
查看习题详情和答案>>The lake used to be polluted, but now something_____ to make it clear again.
A. is being done B. does C. is doing D. is done
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34. The lake used to be polluted, but now something_____ to make it clear again.
| A．is being done | B．does | C．is doing | D．is done |