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请完成下表，掌握动词不定式的时态和语态
用所给动词的正确时态和语态完成下面句子
Computer science _______(teach)now almost in all universities and institutes．
In this school English _______(teach)through TV．
Outer space _______(not explore)by people before 1957．
用所给动词的正确时态和语态完成下列句子
Computer science ________ (teach) now almost in all universities and institutes.
