I have an _______ reading book. Are you _______ in it?

I tried several jackets on ,but _____of them fit me well.

I think _________ of the materials I listened to at the beginning of the exam __________ easy.

Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.

Hi, _________ are you going? —To the zoo. I want to see some animals.