单项选择题

A．The computer doesn’t work properly.
B．Peter is writing an essay on environment.
C．Mary is much better than Peter in using computers.
D．Peter is taking a computer class which is helpful.
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单项选择题
A．China and India have different traffic rules. B．Tea trade works wonders in both India and China. C．Chinese products are popular in both China and India. D．The exchanges between India and China benefit both.
A．China and India have different traffic rules.
B．Tea trade works wonders in both India and China.
C．Chinese products are popular in both China and India.
D．The exchanges between India and China benefit both.
单项选择题
A．Tree leaves are green all the time in the monsoon forest. B．There is a dry season in the cloud forest on tropical mountains. C．Clouds help the plants in the rain forest near the deserts to grow. D．The formation of climate in the rain forest has little to do with the trees.
A．Tree leaves are green all the time in the monsoon forest.
B．There is a dry season in the cloud forest on tropical mountains.
C．Clouds help the plants in the rain forest near the deserts to grow.
D．The formation of climate in the rain forest has little to do with the trees.
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