我来。
1、 drily 应该用成形容词 dry keep sth.+ 形容词 使某物 保持...
2、 Thanks for 改成 Thanks to 翻译为 多亏了你的帮助 。
3、tie the dog on the gate 把 on 改成 to 因为 tie sth. to sth.
的意思是 把某物系到/拴在...上
2楼解释不当
The medicine must be kept as dry as possible.(keep后接形容词)
I told the boy not to tie the dog to the gate.(tie sth. to sth.)
Thanks for your help,I caught up with my classmates.(catch up with为瞬间动词,不能用完成时态)
1.medicine
2.没有错误
3.on the 改成 at the
1. drily -> dry
2. 去掉with
3. on -> to