It is very important ______ the wild animals.[ ]

Why is online shopping getting more popular? —I think it _________ save a lot of time.

Is the shirt made _________cotton?–Yes. It’s made ________ China.[ ]

What did you do yesterday?—My brother took two friends of ________ to play chess with us. But I don’t’ know _______ of them.

What a beautiful school!–Yes. Many trees ________ in our school every year.