Knowledge can make________ difference in our life and change the world.
A.a B.an C.the D./
The Chinese language has become a ________ to connect China with the other countries.
Astronauts sometimes feel ________ in space because they can't see other people there.
Children dress up and visit the houses in their neighborhood asking ________ sweets.
After working hard for several years, her dream of being a writer has ________ true.
________ is allowed to smoke in the Library. We should follow the rule.
