_______ your letter, I am pleased to tell you that you are to receive the answer by the end of this week.
#96089
A
Concerned about
B
Concerning
C
Concerning with
D
Concerned
推荐题目
When I drove to the school gate, I found myself __________in the traffic jam.
#94896
A
catching
B
to catch
C
caught
D
to be caught
The secretary worked late into the night,_______ a long, speech for the president.
#90043
A
to prepare
B
was preparing
C
prepared
D
preparing
Which do you enjoy_____your weekend,fishing or watching TV?
#98893
A
spending
B
to spend
C
being spent
D
spend