I have been looking forward to__________you since I send you a letter last summer.
A.hear
B.hear from
C.hearing
D.hearing from
I have been looking forward to__________you since I send you a letter last summer.
A.hear
B.hear from
C.hearing
D.hearing from
D
look forward to doing sth.“盼望着做某事”,to为介词,后接动词的-ing形式,排除A、B两项;hear from sb.“收到某人的消息或来信”。