We would explain the things the children’s understanding in a simple way.

When I first got to Harvard, my awkward English brought me great trouble.——Oh, dear, it _______a struggle for you to keep up with other students.

下列各项中划横线词语意义和用法相同的一项是（ ）

The famous scientist was goingout _____ he found himself surrounded by lots of young people

Could you tell me ________________ —Next Sunday.