---Look! The telephone is broken. Someone damaged it ________ purpose.---That may be right. But perhaps it was broken _________ accident.
The question occurred to me _____ we should go to get the car repaired. We were in the forest at that time.
—Dad, can we go to the shop? I want to buy some sweets. —__________. Can’t you see I’m busy at the moment?
Next to biology, I like physics _______.
By the time you finish the book, you ______ more about Chinese history.
It is not failure itself but the attitude we have towards it ______ matters.