题目内容
Among the15-year-old children, some ________ studying in university while others arestill learning to read and write.
- A.shouldhave been
- B.would havebeen
- C.can be
- D.must be
C
解析:
can这里表示可能性,指现在。
解析:
can这里表示可能性,指现在。
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