{01}It has come to be realized ______ particular matters in the air expose us to life"s real danger. A.what B.which C.when D.that 解析: 本题选D。
{02}— How long is it ___ the new math teacher came here? — wo weeks. The students just wonder how ___ they can go with him. A.since, far B.when, soon C.before, far D.that, long 解析: 本题选C。
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