we’ll go to the Great Wall___ there is heavy rain tomorrow.  OK! Walking on the Great Wall must be great fun.
#55445
A
as soon as
B
when
C
unless
D
if
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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