The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can ___ all foods are secure to us, but we are sure that the situation is turning for the better．
#13523
A
acknowledge
B
guarantee
C
identity
D
clarify
推荐题目
The _____ in temperature is broadcast twice a day in the channel.
#12691
A
diversion
B
variety
C
variation
D
diversity
To the surprise of the manager, Mrs. Black, who is not easy to deal with, quickly ________ and accepted the new work schedule.
#11109
A
hesitated
B
condemned
C
compromised
D
complained
Not I but Tom _______ the car accident.
#12734
A
was to blame for
B
were to blame for
C
was blamed for
D
were blamed for
Anne felt nervous ____ she gave a speech in front of so many students.
#14362
A
for the first time
B
at the first time
C
the first time
D
at first