So sudden an attack ________ that the enemy could hardly have any time to fly for their lives.
The number of the people who own cars ________ increasing.
——This is the first time I __________ my first picture with my own hands.—It is time that you __________ a picture for me.
The little girl __________ go out at night and often imagined __________ a monster following her.
—Well, I have not made my decision yet.—So, __________, we have to wait, right?
It is not until he returned to his hometown __________ the great changes that had happened.