It is rather difficult to make friends with him, but his friendship, is more true than any other’s.
| A.once gained | B.when to gain | C.after gaining | D.while gaining | 
I was______in the newspaper at that time, so I didn’t notice what was happening.
| A.injured | B.devoted | C.buried | D.trapped | 
It is the way _____ you treated him _____ made him angry.
| A.in that; that | B.in which; that | C.that; which | D.in which; which | 
______ number of visitors were shocked by _____ number of the butterflies(蝴蝶) around the huge tree.
| A.A; a | B.The; the | C.The; a | D.A; the | 
We ______ the national flag when the sun ____ in the east every morning.
| A.raise; raises | B.rise; rises | C.raise; rises | D.rise; raises | 
Jack wasn’t saying anything , but the teacher smiled at him_____he had done something very clever.
| A.as if | B.in case | C.while | D.though |