—It smells terrible. What has happened here?—Look, there is much waste gas _____ from the chemical factory.
– Have you seen the film named Avatar(阿凡达)? -- Yes, I _____ it with my friend last weekend.
–What are you busy with these days? -- I ______ study for the coming English test. You know, I’m not good at it.
– _______do you know our country will build the space station? -- I’m not sure. Maybe in six years or seven.
-- When did your mother know about your score? -- She knew nothing _____ I told her.
The football team needs more _____. It isn’t doing very well.