She must have ranked her birthday presents in order of_because the top one is her favorite．

— Have you seen the film before?— No.This is the first time that I________ it.[ ]

Listen! There is a knock on the door. Who _____ it be?—It must be Jack. Just now I sent for him.

Not until I began to work ________ how much time I had wasted.

lace caught firethree times in the last century, and little of the original building _______now.