题目内容
Mary ______ as a volunteer teacher for 10 years.
- A.works
- B.will work
- C.worked
- D.has worked
D
根据时间状语for 10 years十年了,说明本句为现在完成时态,所以选D。
根据时间状语for 10 years十年了,说明本句为现在完成时态,所以选D。
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Mary _________ as a volunteer teacher for 10 years.
A.works | B.will work | C.worked | D.has worked |