题目内容
( ) 27. ―We'd better how to protect yourself in a fire.
―You are quite right. Everyone should know life is the most important.
A. learn B. to learn C. not learn D. learning
27. A had bettei"后接动词原形。
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题目内容
( ) 27. ―We'd better how to protect yourself in a fire.
―You are quite right. Everyone should know life is the most important.
A. learn B. to learn C. not learn D. learning
27. A had bettei"后接动词原形。