3. Since 2003,China, together with five other countries,_(try) to help solve the nuclear(核）problem in North Korea (朝鮮).
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( ) 3. He often feels lonely because he has no friends_.
A. to play B. to play with C. play D. play with
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3. 一When is the last soccer game?
—It's_________ 7：00________ this Saturday.
A. at; at B. on; on
C. at; I D. on; /
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5. Smoking does harm to our health. So last year his father _(give) it up.
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Cellphones help us easily find people anywhere at any time. However, using cellphones too often
may cause cancer (癌癥). The advice below may help you.
? When using your cellphone, try to keep it away from your body as much as possible. Don't put it under your pillow (枕頭）or on a bedside table when you go to sleep.
? When you're on the cellphone, use the speaker. In this way, you have just 1/100th of the contact with radiation (岸昌射）you have when you hold it to your ear. An earphone is also a good idea.
? Try to keep your conversations short. If you need to talk longer, use an phone instead.
? Change ears when you're using your cellphone. Before putting it to your ear, wait until the person you are calling picks up the phone.
? Your phone gives out radiation when you talk or text (發短信)，but not when you're listening or getting messages. Listening more and talking less can lower the risk of cancer.
? Do not use your cellphone when the signal (信號）is not strong or when moving at a high speed. At high speeds your phone is trying to pick up signals, and this increases (增加）the radiation.
| ||
1._ 2._ 3._ 4._ 5._ |
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2. My friend likes__________ questions.
A. ask ' B. asks
C. to ask D. to asking
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