單項選擇題

A.listen; hearing
B.hear; listening
C.be listening; heard
D.be hearing; listened to

你可能感興趣的試題

A.I'm OK, thanks
B.She is well, thanks
C.They are both fine, thanks
D.He is well, thanks

A.Thanks, so are you
B.Thanks, so do you
C.Yes, I do
D.Yes, you are too