---We can't be successful _____  we keep on working hard. ---I agree with you.
#57280
A
if
B
because
C
unless
D
until
推荐题目
_______ she is ill, _______ she goes to school.
#57900
A
Although; /
B
Although; but
C
But; although
D
Because; /
There ________ children playing games in the park. 
#57573
A
has much
B
are many
C
is much
D
a lot of