Several months later, he found his deskmate very difficult _______.
Don’t eat too much junk food and do more exercise, you’re sure to keep fit ____.
Sam’s cousin ______ a programmer. But he changed his job last month.
He traveled all over the world ______ he had a man-made leg.
If I ______ you, I would represent the class in the school English speech contest.
—Did you take part in the sports meeting last week? —Of course I didn’t, don’t you know that it was ______ because of the rain.