A warm thought suddenly came to me _______ I might substitute the hero to buy some flowers for his mother’s 60th birthday.
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.
Jack wasn’t saying anything , but the teacher smiled at him_____he had done something very clever.