The managing director was to______the accident,although it was not his fault.
Do you know when the Great Wall _________?
He tried his best to solve the problem, _______difficult it was.
This film_________ the scenes of my childhood.
—Do you think playing cards is beneficial to our study?—No,if ________,it can help us kill time when we have nothing to do.
I feel sure that ________ qualification,ability and experience,you are abundantly suited to the position we have in mind.