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21 ----How about going for a walk after supper?
-----___________.
A. No, I’m busy. B. Why do that?
C. Yes, let’s do. D. Good idea.
22. ----- How long have they _____?
----- They _______ more than twenty years ago.
21 ----How about going for a walk after supper?
-----___________.
A. No, I’m busy. B. Why do that?
C. Yes, let’s do. D. Good idea.
22. ----- How long have they _____?
----- They _______ more than twenty years ago.