Father ____ his number in the phone book to make sure that he had got it right.
Canada is a country ________ many different nationalities as well as one with foreign immigrants __________ the majority of its population.
It wasn’t until dark _________ he found _________ he thought was the correct way to solve the problem.
The editor-in chief asked me to write an article for him, ______ about AIDS patients in China.
_________ the exact departure time, he missed his train.
--- I want to know whether the day I am looking forward to will come today or tomorrow.--- Does that make any difference?