The red socks          $4.
#60930
A
are
B
is
C
am
D
can
推荐题目
The students_____ until the heavy rain stopped.
#59177
A
didn’t go
B
went
C
are going
D
can’t go
We should always keep the classroom ________ and tidy.
#55199
A
cleaning
B
cleaned
C
to clean
D
clean