A little boy fell into the river and r___there for two minutes,then he was saved by a policeman
问题描述：
A little boy fell into the river and r___there for two minutes,then he was saved by a policeman
Paper making was one of the Four Great Inventions in a____ China
My father sprinkled lots of salt on the pizza ,so it was s____
The abacus was invented in the sixth c_____ by Chinese people
Aunt Wang was making a birthday cake for her son,it p____a pleasant smell
答
1.remained 停留（=stayed）
2.ancient 古代的
3.salty 咸的
4.century 世纪
5.produced 产生