I wonder why he has been acting sostrangely these days．—Recent pressure at work may ____ hisbehavior．

I’ll ask the teacher about the attributive clause. I’m very puzzled about it.—That’s just ________ most of our classmates have doubt.

What if you come across a situation____________ no one but you are alone on a lonely island?

How much are the black socks— .

How about eight o’clock outside the cinema?— That______________me fine.[ ]