Using gas isn't g____ for nature.
Using gas isn't g____ for nature.
There isn't any gas station here.改为复数形式的肯定句.
many countries are using natural gas ,wind
isolation isn't good for me
that for me ,it isn't over.
It isn't worth waiting for him,
That for me .it isn't
ruby isn‘t here.she went to the nature museum改为同义句ruby -----
英语翻译every hour,every day isn't nature denied?in a world wher
She hasn’t much feeling for the beauty of nature
What isn't easy about/for learning English,what isn't easy t
It isn't worthwhile for you to wait for me.