—Has your son come back from abroad for the winter vacation?—Yes. But he stayed at home for only a week. Now he back to college.
. People couldn't help ___________ the foolish emperor in the procession.
. We’re looking forward ___________ the photo exhibition.
. The girl ___________ under that tree is my sister.
. This sentence needs ___________ .
. ___________ anything about the accident, he went to work as usual..