_______ 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
The room is empty except for a bookshelf _____ in one corner.
#91128
A
standing
B
to stand
C
stands
D
stood
At the crossing there is an arrow _______the direction to the Andrew Farm．
#97845
A
indicating
B
to indicate
C
indicated
D
dictating
This kind of material can be used to _____plastics.
#95998
A
taking the place of
B
take place of
C
taking place of
D
take the place of
This book is considered to be the best novel of its kind ever .
#90722
A
to write
B
writing
C
having written
D
written