didn’t know you had come back! Have you finished your teaching in America－YesI______Chinese there for more than two years

The hall of the school can _____one thousand people. [ ]

He’s got himself into a dangerous situation _________ he is likely to lose control over the plane.

The reason why I missed the party was that my car was _________ in the traffic jam.

The number of teachers in our school ____ less than 300.