Explaining your thoughts calmly ________ show your parents that you've grown up.
A.should B.can C.need D.must
There is too much n________ outside the room. So I can hardly fall asleep.
Sanya is a beautiful p________. I want to spend my vacation there this winter.
The q________ is not difficult at all. All of you can solve it easily.
Mr.Smith has lived in this city for eight years. He regards it as his second h________.
Peter sat at the back of the classroom, so he couldn't see the w________ on the blackboard clearly.
