用 I have done 或I have been doing 填空。 A:Do you see Ann very often? B: No,I _______ (not/see) her for three months.
查看答案
用 I have done 或I have been doing 填空。 A: Is Joe watching TV? B: Yes, he ___________ (watch) TV all day.
用 I have done 或I have been doing 填空。 A: I know Simon. B: How long _________ (you/know)him?
用 I have done 或I have been doing 填空。 You see somebody fishing by the river. You ask:__________ (you/catch)any fish?
用 I have done 或I have been doing 填空。 You meet a woman who tells you that she teaches English. You ask her: How long ________ (you/teach) English?