21．—Would you like to go out for a walk with us?
—___________．
A．You may ask your sister to do, too． B．No, but I can’t afford the time．
C．No, I’d like to． D．No, I don’t feel in the mood for it now
22．Chris, please ________ a meeting with Mr．Du for me this evening who came back from Canada yesterday．
A．manage B．organize C．plan D．arrange
23．The fruit ________ fresh in his fruit stand ________ well．
A．look, sell B．looking, sells C．looked, sells D．looking, is sold