— How long _____ you _____ in the country with your grandparents, Henry?— About four weeks. I’ll return as soon as school starts.[ ]

Since the baby milk powder was found to be polluted, there has been universal doubt _____ other food products are safe _____.

You look well.The air and the sea foods in Sanya must ________ you, I suppose.

You never feel worried before an exam. How can you—Well, I’ve been working hard all the time. Surely I am _________ any exam.

and gentlemen, please raise your glasses anddrink a _______ to the success of the new company