His parents ____ coming to meet the teacher tonight.A. are B. were C. is
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.