我们应该注意在图书馆不要大声说话 英文we should————talk loudly in the library.我们把米吃完了.we have———the rice第一个4空,第二个3空

We should take care not to talk loudly in the library.
We have eaten (mopped) up all the rice.
注：eat up 和 mop up 都有吃光的意思,后者更口语化.run out (of) 不可用,那只是用光的意思.