___we must do is___ the use of energy.
___we must do is___ the use of energy.
What we must do is reduce the use of the energy
____we must do is___the use of energy.B.What ;t
what we can do to cut down the use of energy?什么意思
We must use the lift to reach the top floor.一般疑问句___we ___th
英语翻译We can use many kinds of energy. Most energy(能量)in the
I must make full use of the time _____ left to me and do as
which do you think is___(special)of all the gifts
This is___,but it's already in use in many parts of the word
what shall we do if we use up the energy in the world的同义句
英语翻译The very simplicity of this use of energy proves to us t
sum 的用法The ____ of energy which we use is increasing every y