Nuclear science should be developed to guard peace ____ destroy the world.
A．instead of B．more than C．rather than D．less than
—Has the doctor _______the old woman of her illness?
—No, he ______ her but didn’t ________ her.
A．cured; treated; treat B．cured; cured; treat
C．treated ; treated; cure D．cured ; treated; cure
—Is the White House _________ to ordinary visitors?
—Of course.
A．adjustable B．available C．reasonable D．accessible
The little boy was allowed to go swimming _______ he kept near the other boys.
A．provided that B．in case C．now that D．by the time
—It’ll take me at least 2 hours to do this!
—Oh, _______! I could do it in 30 minutes.
A．come on B．pardon me C．you are right D．don’t mention it
请写一篇120词左右的英语短文，分析越来越多的中学生玩微博的原因和利弊。
注意 1）开头和结尾已给，不计入总词数 2）书写清楚,卷面整洁
Micro blogs have become part of our lives and bring lots of benefits. …
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In my opinion，we should be careful and cautious while using micro blogs.
