改英语句型

题目

改英语句型
John needs to cut his hair because his hair is too long.
John needs to_____his hair ______because of his long hair.
After planting the trees you should water them often.
The trees ______ _____ _____ often after they _____ _____.
We allow you to use the computers.(改为被动句)
You _____ _____ to use the computers.

答案

John needs to have his hair cut because of his long hair.The trees should be watered often after they are planted.You are allowed to use the computers.