Question

Peter is busy _     _ at school, but he never forgets _     __ exercise every day.
A. working; doing      B. working; to do          C. at work; doing

Answer 1

B

试题分析：句意：彼得在学校忙于工作但他从来不会忘记每天锻炼。be busy doing sth,忙于做某事。forget to do sth,忘记做某事。故选B。