–What did you think of the place?--- I didn’t care for it at ____first, but after ____ time I got to like it.
People aren’t waching_________television as before on Christmas Day because they use their videos.
Mr Brown arranged for the taxi to come at six_________she would not have to wait long at the station.
He spent much of the evening with Robert Green, _________he had hardly seen in the thirty years since they had worked together at CBS.
At last, the boys found themselves in a pleasant park with trees providing shade and_________down to eat their picnic lunch.
The researehers delermine what type of plants the virus can infect(感染) and_________insects can carry the virus.