请教两道改错，谢谢！

bessette

In (the wild),tea plants become (trees) of (approximately) thirty feet in (high).

答案是high错，我觉得approximately 和 high 都有问题，approximately 是不是应改成adj.,high应改成height.

Physical fitness (activities) can lead to an alarming variety of (injuries) if participants push (themselves) (greatly) hard.

greatly 是不是要改成 too?

多谢！

yiyuan05

1.答案没有错，是改成height。这是常考的形式。还有long改成length
2.是改成TOO，一般用greatly修饰形容词或分词。

bessette

那么approximately怎么解释？

不过我见过nearly thirty feet high, 可以说nearly thirty feet in height吗？

谢谢yiyuan!