As I'll be away for at least a year, I'd appreciate ()from you now and then telling me how everyone is getting along.
A.hearing
B.to hear
C.to be hearing
D.having heard
正确答案:hearing
As I'll be away for at least a year, I'd appreciate ()from you now and then telling me how everyone is getting along.
A.hearing
B.to hear
C.to be hearing
D.having heard
正确答案:hearing