---We can't be successful _____  we keep on working hard. ---I agree with you.
#57280
A
if
B
because
C
unless
D
until
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—Look! Lily and Sally are cleaning the school laboratory.—Let’s go and join them.       .
#55123
A
Many hands make light work
B
The early bird catches the worm
C
A friend in need is a friend indeed
D
The grass is always greener on the other side
We didn’t know the good news ______ he told us.
#56758
A
after
B
or
C
because
D
until