---What are you busy____these days?----Nothig much
#50155
A
do
B
to do
C
doing
D
done
推荐题目
The students should ________ to choose their own clothes. It will be a good way _____ themselves happy. 
#50322
A
allow, to keep
B
allowed, keeping
C
be allow, keeping
D
be allowed, to keep
I saw them ___football on the playground when I passed by.
#49063
A
playing
B
were playing
C
played
D
to play