From facts,scientists have ________that more energy is being absorbed from the sun,throwing the earth's energy “out of balance”.
This book _____ ten units, ______ three mainly revision.(复习)
Many kinds of animals and plants die ____ every year. A down B away C out D from
I can’t tell you the exact time. I’ll get there, maybe at eight or nine or even later. ____, I’ll be there as early as I can.
It was in the rice fields ____ we had our league meeting.
--Have you moved into the new house? ---Not yet, the rooms ______.