_____trees are planted in our city every year.
________got into the room________the telephone rang.
Tom was disappointed because most of the guests________when he________at the party.
—Why did you miss the English class? —Because my alarm clock didn’t________.
—Why are you late again? —I overslept,and________I got to the bus stop,the bus had left.
He________to play________before he was 11 years old.