1、You had better change clothes often . (变否定句） You（ ） （）（）（）clothes often.2、Ann does exercise （for at least half an hour ）every day .对括号部分提问（）（）（）Ann（）exercise every day?3、after she talked to Mr.Li ,she （h ）away without saying to she others.谢谢
问题描述：
1、You had better change clothes often . (变否定句） You（ ） （）（）（）clothes often.
2、Ann does exercise （for at least half an hour ）every day .对括号部分提问
（）（）（）Ann（）exercise every day?
3、after she talked to Mr.Li ,she （h ）away without saying to she others.
谢谢
答
1. had better not change
2. How long does do
3. hurried
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答
1. You (had) (better) (not) (change) clothes often.
2. (How) (long) (does) Ann (do) exercise every day?
3. ..., she (hurried) away without saying ...
答
1.had better not change
2.How long does do
3.hurried
答
1. had better not change
2.How long does do
3.hurried