中国大学MOOC: Nuclear testing has exposed millions of people __________ radiation.
举一反三
- 中国大学MOOC: China has lifted hundreds of millions of people out of poverty in the past 30 years.
- 中国大学MOOC: There are 8 millions people living in London
- the of nuclear radiation
- Rice (has been) a (basically) food for (millions of) people for (hundreds of) years. A: has been B: basically C: millions of D: hundreds of
- This test has been taken by millions of people around the world. ( )