Mr. Hall understands that _______ math has always been easy for him, it is not easy for the students.
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A
unless
B
since
C
although
D
when
推荐题目
_____ for the free tickets, I would not have gone to the films so often.
#66887
A
If it is not
B
Were it not
C
Had it not been
D
If it were not
Xi’an was the last city ______ he visited when he came to China.
#70197
A
where
B
which
C
that
D
in which
Before Chinese Chang’e-2, the US sent up a space probe (探测器) to hit the moon to see ______.
#69622
A
whether there was water on it
B
whether was there water on it
C
whether on it was there water
D
whether was water on it