题目内容

【B4】

A. of
B. in
C. on

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Maddy is a boy.

A. Right.
B. Wrong.
C. Doesn't say.

How was the weather 10 years ago if the tenth ring is close to the eleventh one？

A. It was good.
B. It was bad.
C. We don't know.

【B3】

A. is
B. as
C. like

What is the text about？

A. What is a tree ring.
B. What can a tree ring do.
C. How to study a tree ring.