The children without parents ______ good care of by their teachers in this special school.
The Kowloon Walled City has turned ______ a beautiful park.
____ educational CD-ROM has just come out. _____ CD-ROM is called ‘Dora Explorer’.
—Hello, may I speak to Mr Green, please? —Sorry. Hea meeting. Can you call him later?
Robotsthe house for us in the future.
—What did you do before you came here? —I in a factory.