Hello,boys and girls, please help ___ to some fish.
Leo was late for class again.So he____ clean the classroom after school.
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.