A. ambition

　　B. abandon

　　C. absence

　　D. appoint

　　7. There is a natural phenomenon

　　scientists call the greenhouse effect.

　　A. that

　　B. what

　　C. for which

　　D. who

　　8.

　　all day, I went to bed early.

　　A. Working hard

　　B. Worked hard

　　C. Having worked hard

　　D. To work hard

　　9. Using a telescope we could see that something

　　.

　　A. is happening

　　B. happened

　　C. would happen

　　D. was happening

　　10. There is no doubt

　　the earth is becoming warmer.

　　A. whether

　　B. that

　　C. if

　　D. why

　　11. Claire thought it was ridiculous

　　sympathy by a robot.

　　A. to offer

　　B. to be offered

　　C. to be offering

　　D. to have offered

　　12. I am very outgoing and have learned to

　　my disability.

　　A. adapt to

　　B. adapt from

　　C. adapt for

　　D. adapt with

　　13. As we drew closer, I could see a whale

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