The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
Neil Armstrong was the first man ______ on the moon in July 1969.
Busy as the working mother is, she still_____ a lot of time to her children.
How would you feel being locked in the house all day with no one and nothing for _____?
Over the past 20 years, the Internet has helped change our world in _____way or another for the better.
The boy doesn't work hard enough at his lesson. As for his intelligence, he has ______ he can possibly make use of.