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11. Our rain forests are    , so we should protect them.

A. dangerous       B. in danger      C. invisible         D. in safety

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10. There are five people in the room, but I know    .

A. both of them     B. none of them   C. all of them       D. neither of them

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9. English is very important. You are supposed     it well.

       A. to learn          B. learns        C. learning         D. learned

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8. - What terrible weather it is?

       -     that it’ll get worse later.

       A. It is reported      B. It report      C. It said           C. It supposed

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7. - I think we should write a letter about the pollution     the newspaper.

       - OK. Let’s begin.

       A. to              B. for          C. in              D. at

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6. - What a big box! Can I help you?

- No, thanks. There’s     in it. It’s empty.

A. nothing          B. nobody       C. anything         D. something

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5. - He’s never stolen anything before,     he?

       -    . It’s his third time to be taken to the police station.

       A. hasn’t; Yes       B. is; Yes        C. has; Yes          D. has; No

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4. - How many girls are there in our class?

       - In our class     of the students are girls.

       A. three fifths       B. three fifth     C. third five         D. third fifths

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3. We should use     sides of paper.

  A. all             B. each         C. neither          D. both

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2. Trees can stop the sand     towards the rich farmland in the south.

       A. to move         B. move        C. from moving      D. moves

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