After hospitals buy expensive equipment, they must try to ________ the money they have spent.
. I have read the material several times but it doesn’t make any ____to me
. ----Was everyone here ----No. Some students ______traffic on the way
. The boys enters the classroom, smiling and______, and_______down to have their lessons
. The bus the man was looking forward to _______only a minute ago
. ---When did Miss Wang leave the office ----She left ____you turn bake to write on the blackboard Athe minute B. a time C. until D. Unless