---I am sorry to have kept you ___________.---It doesn't matter. I've just come.
#49688
A
wait
B
waited
C
waiting
D
to wait
推荐题目
--What did the teacher say just now?--- The teacher told us _______ our hands before ______ the questions.
#49442
A
to rise; answered
B
rise; answering
C
to raise; answering
D
raise; answered
___________for his good skill, this doctor has a lot of visitors calling for help all the time.
#48486
A
Knowing
B
To know
C
Known
D
To have known
There 's a teacher _____ with your parents in the teachers' office.
#49948
A
is talking
B
talks
C
to talk
D
talking