It took Linda an hour_____ her home-work last night.
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.