1.As we all know,Radium is a element.
答案:radioactive
2.An earthquake sometimes causes great .
答案:damage
3.There’s of work for her to do.
答案:masses
4.Many experts at the same time doubted about it.
答案:technical
5.In the end the abandoned the sinking ship.
答案:crew
6.Here is some information to you in making the best selection.
答案:assist
7.The boss gave him the push his careless work.
答案:due to
8.All seven astronauts on the died in the crash.
