-How do you know that she likes singing?-I often hear her      after class.
#50786
A
to sing
B
singing
C
sing
D
sings
推荐题目
It is difficult for the students______  the homework on weekends. 
#49154
A
finish
B
to finish
C
finishing
D
finished
Thanks for________ me to go to your English party.
#50265
A
invite
B
to invite
C
invites
D
inviting
Pracitce _______ English as much as possible then your ________English will be much improved.
#49863
A
speak, speaking
B
spoken, speaking
C
speaking, speaking
D
speaking, spoken