Global warming Period 3 Grammar—the Use of “It”(2)
3.it is because english is being widely used at present ______.
a.why we learn it hard b.that we learn it hard
c.which we must learn d.when we should learn
4.—was it what he said or something that he did ______ made you cry so sadly，sarah?
—no，not really.
a.which b.that
c.when d.what
5.______ the people have become masters of their country ______ science can really serve the people.
a.it is only then；that b.it was that；when
c.it is only when；that d.it was when；then
6.—i think we have met the word before.
—yes.it is in the reading material ______ we ______ reading yesterday.
a.that；did b.that；were
c.when；were d.when；did
7.it was there，the police believe，______ she was able to activate the recorder she kept in her bag.
a.until b.which
c.that d.when
8.it was this sense of failure ______ made him determined to succeed in his new life.
a.who b.which
c.that d.why
9.______ that so many people think that being perfect is the way to go?
a.it is why b.why is it
c.why it is d.is why it
10.when asked to explain ______ he does to make his students so enthusiastic about school，he pauses and thinks deeply.