A:4000个和900个
B:4000个和1800个
C:8000个和1800个
D:8000个和3600个
—Do you have enough nurses to take care of the injured?
—No, I think we need _______ nurses.
2014年10月9日,无锡的很多市民在自家阳台欣赏到一轮“红月亮”高挂夜空的迷人景象,此次月全食是由于光的____造成的。
— Her dream is ____( be) an engineer.