24.The old man came——to the railway smtion,only the train was slowly pulling out of the station.
Children’s brains cannot develop properly _________ they lack protein.
We all write ____________ even when there's not much to say.
Experts and teachers all think that failure is not __________ a bad thing to some extent.
---What do you think about the measures taken to prevent _________ global warming? --- On __________ whole, they are good.
---Shall we go out for a meal tonight? ---__________. We haven’t been out for ages.