The notes for glossary (词汇) are very exact and particular, which could help readers to break the language so directly and effectively.
The number of pages in this dictionary ________ about two thousand.
Now Tom with his classmates ________ football on the playground.
Half of the workers here ________ under 30 ________.
About 60 percent of the students ________ from the south,the rest of them ________ from the north and foreign countries.
He looked quite healthy though he was _________.