There are many valuable services which the public are willing to pay ___, but which __ not bring a return in money to the community.
One way to understand thousands of new words is to have________ good knowledge of basic word formation.
The shop was not far from here, so they went there on foot by bus.
In China graduates go abroad to have a further study every year.
The building windows are bright at night is our school library.
Jack has a good habit of keeping a diary every day;he is very good at writing.