题目内容

4. These are my pens. Where are ()?

A. their
B. theirs
C. my
D. your

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更多问题

如果中子和质子一样重，或电子再重上5倍，那宇宙现状不会发生变化。（）

A. 对
B. 错

5. This bag of () used to be one of the best sellers in the shop.

A. his
B. him
C. it
D. itself

1.连线题。

1.The Chinese() industrious and brave.

A. is
B. am
C. are
D. \