-Must I take part in the activity?-No, you _________.A. mustn’t B. don’t C. don’t have to
His wife advised him________ drinking, but he wouldn't.
That beautiful skirt is _____ cotton.
— Why _____ most stars _____ in the daytime? — Because the sun is too bright.
Students _____ be allowed to use mobile phones at school. --------I agree.Phones can bring troubles.
Do you mean you will join the club? ----- Yes, I am _____ it.