Which floor do you_______ this tall building?

It needs a lot of practice ___English well. 

—Dinner is ready. Help yourself! —Wow! It ________ delicious. Could you please tell me how to cook it?

— Excuse me, may I borrow your Chinese-English dictionary?— OK, here you are. But you can           it for only two days．

--What’s the matter with your mother? ---She ______ a sore throat.