So fast _____it is difficult for us to imagine its speed.A.does light travel thatB.light travels th

______ is quite difficult for Mary to pass the interview.A．WhatB．ThisC．ThatD．It

It is not so much the language______the cultural background that makes the film difficult

It is difficult for the woman and her friends to change dates because______.A．it"s rather

Fast food doesn t seem like a good idea, for it is______.A．nutritiousB．unhealthyC．balanced

It is difficult for her to make the final decision now ________ she is in a deli

The stone was so heavy that it was difficult for the old man to____ it.A.liftB.reachC