Would　you　mind　my　sitting　next　to　you？-　_____.

There is so much noise in the yard that I can’t _____ my attention on my work.

I saw Mr Li at the meeting yesterday.— Did you He _______ have attended it, forhe had asked for sick leave.

My father will be back ______ the morningof May 15.

I still remember _______ the grand school usedto be a abandoned airport two years ago