Joe,my close friend,moved to Beijing years a90,and I him since then. A don’t see B didn’t see C haven’t seen D won’t see
---- What was wrong with you yesterday evening?---- I ____ my homework when the light went off suddenly.
---- Your coffee smells good! ---- It’s from Canada. Would you like ____ ?
--- Could you tell us ______? ---- About two weeks.
The workers can ____ the waste things ____ something useful.
---- _____ ? ---- I am 1.7 metres tall.