—It’s a long time since we met last. Haven’t you graduated from college yet?—_____. I ______ English for four years in Nanjing University.
. Take an active part in sports or other activities you enjoy ____ you can meet various kinds of people.
It is well-known that ____ year 2006 saw many developments in ____ science and technology, with those in the field of space science being particularly notable.
A writer has to ____ his imagination and experience to produce good works.
In Chinese, the same pronunciation with different tones has different meanings. The same is ____ music.
If businessmen are taxed too much, they will no longer be motivated to work hard, with the result thatincomes from taxation might actually ____.