---What are you busy____these days?----Nothig much
#50155
A
do
B
to do
C
doing
D
done
推荐题目
Listen! Can you hear them _______ in the next room?
#48588
A
practising to sing
B
practising singing
C
practise singing
D
to practise sing
We have 3 rooms ____________ , but I can’t decide ____________ . 
#51228
A
to live, to choose which one
B
lived, choose which one
C
to live in, which one to choose
D
live, which one
We have so many kinds of guitars for you ________.
#49705
A
to choose
B
to choose from
C
to be chosen
D
to be chosen from
Lily practises _______ the piano very hard.
#49238
A
play
B
plays
C
playing
D
played