You can’t get good grades______ you study hard.
#55627
A
when
B
because
C
unless
D
that
推荐题目
I’m not sure if he _____ me . If I ________ , I will go with you.
#55737
A
will invite; will be invited
B
will invite; am invited
C
invite; will invite
D
invite; invite
You can’t get off the bus ___________ the bus stops. 
#55501
A
after
B
when
C
until
D
because