Everybody tells us we can’t pass the exam ________ we study hard.
#56050
A
because
B
or
C
unless
D
and
推荐题目
______ would you like to live in? 
#55518
A
where
B
which city
C
which
D
When
You will fall behind others_______ you work hard.
#56590
A
if
B
unless
C
though
D
since
Grace Brown __________ play tennis every day.
#58071
A
isn‘t
B
don’t
C
aren’t
D
doesn’t.