Richard was called in by the police to answer questions _______ the disappearance of Thomas Ripley, whose relatives were so ______ his present situation.
#4655
A
concerning; concerned about
B
concerned; worrying about
C
with regards to; concerned
D
regarding; concerning about
推荐题目
–The floor is dirty. Can anyone clean it?   –_____I do it all the time.
#4875
A
Don’t mention it.
B
Why you?
C
Not sure
D
Not me again.
Have your working conditions improved?---No, ______than before, I’m afraid.
#4921
A
no better
B
a little batter
C
not worse
D
no worse
They use computers to keep the traffic _______ smoothly. 
#5026
A
being run
B
run
C
to run
D
running