Students should pay attention to __________ the teacher in class.
#50928
A
hear
B
listen to
C
listening to
D
hearing
推荐题目
Simon is _______to make us all _______.
#50546
A
enough funny;laugh
B
funny enough;laugh
C
enough funny;to laugh
D
funny enough;to laugh
 Mario used to _____________ in the morning.      
#48943
A
practiceswimming
B
practicingswimming
C
practiceswim
D
practicesswimming