In March when spring is already here, we usually plant many young trees on both side of the street.
In March when spring is already here, we usually plant many young trees on both side of the street.
出现
That student _____ his hand every time I asked a question.
That student \_\_\_\__ his hand every time I asked a question.
A news of his arrest travelled quickly among his friends.
A news of his arrest travelled quickly among his friends.