Question

【题目】It's good manners to be ________________ while watching the raising of our national flag.
A.happy
B.serious
C.kind
D.generous

Answer 1

【答案】B
【解析】考查形容词。句意：当我们看国旗升起的时候，严肃是好习惯。A.happy高兴的；B. serious严肃的；C. kind好心的；D. generous慷慨的。故选B。