.In our factory there are 2,000 workers, two thirds of ____are women.

Why was Miss Lee angry this morning—Because Tom didn’t _____ his homework.

The policemen are looking for people __________ the accident which happened last night.

eated in a chair and lost in thought, gave me a sudden look, as if_______ ,“Are you kidding”

concentrated for a long time he____ his work, made some coffee and talked with his colleagues