-----Look !Sue is over there.----That _________be her .She is in Canada now.A .mustn’t B. can’t C. needn’t
They have to do a lot of work, ________ they?
I think picking apples ________ very interesting.
What’s your brother like? ________.
Helen told me that she had some problems _______ his English learning.
I think maths is not ________ science.