—I was on the point of crossing the road _______ the car accident happened.—So you are a witness.
It is reported that two schools,____are being built in my hometown,will open next year.
Peter received a letter just now___his grandma would come to see him soon.
.Some students often listen to music___classes to refresh themselves.
—What does the sign over there read? —“No person___smoke or carry a lighted cigarette,cigar or pipe in this area.”
When you get the paper back,pay special attention to what______.