—It's no easy task to catch a ticket on a website that receives 1 billion clicks daily.—I can't agree with you more. There ________ be errors for every single step.
#62404
A
should
B
must
C
can
D
will
推荐题目
All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.
#74653
A
something useful
B
anything useful
C
useful something
D
useful nothing
--- Shall I get one more cake fro you, David?--- Thanks, but you ______. I’ve had enough.
#63054
A
shouldn’t
B
mustn’t
C
can’t
D
needn’t
-Mr. Zhou, _____ the Iphone belong to Alice?-I’m afraid not. It may be John’s, but I’m not sure.
#75324
A
can
B
must
C
will
D
need