I hear the birds _______.
#51349
A
sing
B
to sing
C
sings
D
singing
推荐题目
.I use my computer_______ information every week.
#48617
A
to search
B
to finding
C
to search for
D
to look
Listen! Can you hear them _______ in the next room?
#48588
A
practising to sing
B
practising singing
C
practise singing
D
to practise sing
Most students hope _______well in their study.
#50687
A
doing
B
do
C
to do
D
does
Now I’m ________ my turn. 
#50482
A
wait for
B
waiting for
C
waiting
D
waiting to