---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
I prefer watching TV to ______ music every day.
#50032
A
listen to
B
listen
C
listening to
D
listening
I often practice _________ football on Friday.
#49616
A
playing
B
to playing
C
play
D
to play
She is often seen ______ the old woman.  
#50014
A
help
B
helping
C
to help
D
help to