Listening to loud music at rock concerts causedhearing loss in some teenagers.

You didn’t wait for Mr. Smith last night, did you?—Yes, but we ________. He didn’t return home at all.

47 Although he ‘s wealthy，he spends_____________ onclothes

reported that as many as50% of patients do not take medicine ______ directed, ______ has drawn doctor’sattention.

Tom often helps me ______ my English.