看那只猫！它正在爬树。

Look at that cat! It is climbing the tree.

看！那儿有一只猫正在爬树。

Look! Where there is a cat climb a tree.

汤姆正在爬树。

Tom's climbing up the tree.

她/他正在爬树吗？

Is she/he climbing a tree?

那头猪怎么样啊?他正在爬树吗?。

How about that pig?Is he climbing a tree?

听录音，然后回答问题。猫正在爬树吗？

Listen to the tape then answer this question. Is the cat climbing the tree?

有一只猴子在树上. 它正在爬树, 真有趣!

There is monkey on tree. It is climbing tree. How funny!