I. Rewrite each sentence so that it cotains the word in brackets:

1. Minh is one of my friends.

-> Minh is a friend of mine.

2. Natural gas is cheaper than coal.

-> Coal is more expensive than natural gas.

3. It's a good ideal to turn off the lights when they are not in use. ( sửa đề )

-> You should turn off the lights when they are not in use. 

I. Rewrite each sentences so that it cotains the word in brackets:

1. Minh is one of my friends.

-> Minh is a friend of mine.

2. Natural gas is cheaper than coal.

-> Coal is more expensive than natural gas.

3. It's a good ideal to turn off the lights when they are not in use. (Bạn gõ nhầm từ nit là sai nên mk sửa lại là not nhé!)

-> You should turn off the lights when they are not in use. 

#chuchoctot

Xin hay nhất ạ!!!!