A. couldn’t B. quiet C. active D. different

【1】I am ______ now. I was short before. I am tall now.

【2】I was so short before. So I ______ ride my bike.

【3】Now, I am ______ in class. I often answer many questions.

【4】I was ______ before. I didn’t have any friends.

【答案】

【1】D

【2】A

【3】C

【4】B

【解析】

略