.It is obvious to the students ______ they should get well prepared for their future.
—Why did you cancel your trip to the New York? —We were just about to leave_______ it started to snow.
Dr.Frank failed many times but he finally _______ to find a successful way to solve the problem.
—Are you pleased with what he has done? —Not a bit .It couldn’t be ________.
_____ scores of times , but he still couldn’t understand it .
We waited and waited._________ we had been looking forward to .