_____ about the safety of her son, John’s mother looked upset．
#96419
A
Concerning
B
Concerned
C
To concern
D
Concern
推荐题目
Now that we’ve discussed our problem, are people happy with the decisions ________?
#98266
A
taking
B
take
C
taken
D
to take
He got up late and hurried to his office, ______ the breakfast untouched.
#93387
A
left
B
to leave
C
leaving
D
having left
A sheep_______on this kind of special grass usually grows much faster than_______on ordinary (普通的).
#95283
A
feeding; one
B
feeds;the one
C
fed;that
D
feeding;it
The bird was lucky enough to escape ________ by the young man.
#97144
A
caught
B
to be caught
C
catching
D
being caught
The thief took off his shoes when he slipped into the house in order to steal something ___.
#90940
A
unnotice
B
unnoticed
C
unnoticing
D
to unnotice