30. The No. 5 subway line, ______in October, 2007, has greatly improved the traffic conditions in Beijing.
______ he referred to in his article was unknown to the general reader.
This magazine is very with young people, who like its content and style.
We give dogs time, space and love we can spare, and _____, dogs give us their all.A in all B in fact C in short D in return
The doctor thought ___________would be good for you to have a holiday.
How about taking ______ short rest? I want to make _______ call.