Early peoples moved around, ______ the herds of animals.
In my opinion, no search engine can ____ Baidu in search scope and speed (搜索速度和范围).
I was______in the newspaper at that time, so I didn’t notice what was happening.
It is the way _____ you treated him _____ made him angry.
______ number of visitors were shocked by _____ number of the butterflies(蝴蝶) around the huge tree.
We ______ the national flag when the sun ____ in the east every morning.