A. dropped in
B. dropped out
C. dropped on
D. dropped off
Professor Hawking is __________ as one of the worlds greatest living physicists.
How did it become one of the worlds great trading and financial centres? The str
It is listed by the Guinness Book of World Records as the worlds largest undergr
The studys report states that as global warming transforms the environment in th
Degradation of the worlds natural resources by humans is rapidly outpacing the p
He became the worlds richest man by developing and selling computer software aro
Scientists will have to ________ new methods of increasing the worlds food suppl
Chinas huge market and economic growth are looked upon ___ benefits to the world
With approximate 1.2 billion people in 2016, Africa accounts for about ________
China has not only become the worlds factory, but has also brought great opportu