The police believe that the murder________ 9 p.m. and 11 p.m. yesterday.
--- Did you and your friends ride to the mountain last Sunday? --- Yes. ________ we had !
--- Another cup of coffee? ---No. thanks. I _____ be off. Marry is waiting for me.
--- What’s your brother? ---He _______ a teacher, but now he is a doctor.
--- How long have you ________ Hong Kong? --- For two weeks.
Jack ____ to help our Chinese teacher carry books yesterday morning.