日本語をクリックすると英文が表示されます。まずは自分で英語にしてから答え合わせを。
It is interesting to learn new things.
Is it easy to drive a car?
Why is it necessary to study many subjects?
It is important to learn(study) English.
You must(have to) decide which book to buy.
It is difficult for him to get up early in the morning.
He is learning how to use the machine.
It is very easy for them to speak English.
Does your mother teach you how to cook?
It is interesting for you to collect stamps, isn't it?
As both books look interesting, I don't know which to buy.
It is important for her to practice the piano every day.