The boy ______ his friends was playing in the street when the earthquake happened.
Mr. Green, a famous writer, __________ our school next week.
—Do you know that band? —Yes. I often watch it ___________ music in the park.
While I __________ with Lily, the school bus came.
He will send me a message as soon as he _________ in London.
The songso beautiful. I really like it.