There 's a teacher  _____ with your parents in the teachers' office.
#49948
A
is talking
B
talks
C
to talk
D
talking
推荐题目
 Mario used to _____________ in the morning.      
#48943
A
practiceswimming
B
practicingswimming
C
practiceswim
D
practicesswimming
There is going to _________an important meeting tomorrow. Please try _________late,
#48830
A
have; not to be
B
have; not be
C
be; not to be
D
be; not be