“Would you have told him the answer had it been possible?” “I would have, but I ＿＿＿＿so busy then.” 

．—I did not know you were good friends．—You___．I have known her since she moved here．You were abroad then．

—Why are most of us unable to study English well，Mr.Li?—You ______.But you ______ too little attention to it.

—I can’t find my purse anywhere.—You __ have lost it while shopping.

No person __________ carry a mobile phone into the examination room during thenational college Entrance Examinations．