题目
A.This is
B.That is
C.It is
第2题
A.it
B.that
C.what
D.this
第3题
A.When
B.where
C.that
D.which
第4题
第5题
He checked the luggagethoroughlyto make sure that nothing important is left
A.patiently
B.quickly
C.completely
D.basically
选出意思最为相近的一项
第6题
()is very important that you don't make any mistakes when you calculate those figures.
A. That
B. What
C. It
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