--The sixteen-year-old student is very good at music. He himself has written some good music.--Really? What a(n) _____________ boy!
– May I take the magazine out of the reading room? -- No, you can’t. You read it here. It’s the rule.
Everyone went to the zoo last Sunday ______Jim.
____ will he be back? In a week.
If you miss so many lessons, you must fall behind ____ classmates.
I found _____ very difficult to learn maths well.