Some children were seen _______in the garden all the morning. It must have been _______who picked the flowers.
—I wonder why he has been acting so strangely these days.—Recent pressure at work may his behavior.
It was not rare(稀少) in that people in fifties were going to school for further study.
Mary speaks with a strong southern accent so that she is taking classes to herself of it.
Written in a hurry, . How can it be satisfactory?
The traffic problems we are looking forward to seeing should have attracted the government’s attention.