—The problem isn't difficult for the children to work out, is it? —_____ . Perhaps they should have been given a more difficult one. 
#3913
A
Yes, it is
B
Yes, it isn't
C
No, it is
D
No, it isn't
推荐题目
--I'm sorry I made a mistake!--    No body is perfect.
#1740
A
Take your time
B
You're right
C
Whatever you say
D
Take it easy
— Are you cleaning my room, Lily? — ______. I can’t bear seeing your room in a mess!
#748
A
I can’t help it
B
Not at all
C
You are clever
D
No chance
~Now, where is my purse?_______! We'll be late for the picnic.
#2849
A
Take your time
B
Don't worry
C
Come on
D
Take it easy
— Can I have a look at other jewels before I make a decision?— Certainly. ________, Madam.
#1169
A
That's right
B
It doesn't matter
C
Enjoy yourself
D
Take your time