It was not until she got home ______ Jennifer realized she had lost her keys.
He asked me ________ with me.
American English has so many _________ because the American people have come from all over the world.
A large number of students in our school ____ from the countryside; the number _____ growing these years.
He looked at the envelope and __________ Jenny’s handwriting immediately.
It is said that more than ten thousand workers have ______ the strike(罢工).