Our music teacher is always heard _______ in the music room.
#50599
A
sing
B
sang
C
singing
D
to sing
推荐题目
--- Tom is one of _________ students in my class . --- Yes . He usually prefers _________ at home to playing outside . 
#49381
A
the most hard-working , studying
B
more hard-working , to study
C
the most hard-working , to study
D
more hard-working , studying
She’s afraid of ______  in front of other people.
#50438
A
speak
B
speaks
C
speaking
D
spoke
 Mr Lin asked us        questions in English, not in Chinese.
#50662
A
answer
B
to answer
C
answering
D
answered