The firemen arrived just in time to ______________ the child stuck in the fire.
rescue
Robots can search for people after earthquakes ______________ than humans can.
faster
Without modern science and ______________, humans cannot travel to the moon.
technology
Jane’s mom: Robots can recognize people’s voice and do what they say. Jane: ______________.
How amazing!
My mom cleans the floor ______________ than a vacuum cleaner.
more slowly
Cleaning is a simple job, and robots don’t get ______________.
tired
My father prefers this robot because its battery can ______________.
last longer
That smartphone has long battery life. ______________, it costs much more than this one.
However
The greenhouse effect is the slow rise of the earth’s ______________ because of the increase in carbon dioxide in the atmosphere.
temperature
If we check our tests ______________ carefully, we can get higher scores.
more
