We have done what ______.So don’t panic any more.
#38570
A
is doing
B
has done
C
is done
D
can be done
推荐题目
“Go home often”_______into the Chinese law in 2013.
#36249
A
has written
B
is written
C
will write
D
was written
As students, we are supposed to spend more time _________ . 
#40373
A
study
B
studied
C
studying
D
to study