—What do you think we can do for our aged parents?—You________do anything except to be with them and be yourself.

My pen doesn’t work well. Could I borrow _____, John?

As it turned out to be a problem of no importance , we     so much time looking into it . 

In China, you _____ vote when you are 18.

— Mary looks hot and dry. — So ________ you if you had a high fever.