《How often do you exercise?》PPT课件2
《How often do you exercise?》PPT课件2第2页

100%

always

usually

often

sometimes

hardly ever

≥ 80%

never

0%

≥ 60%

≥ 20%

< 5%

提示:频率副词在句中的位置是:实义动词之前, be动词或助动词之后。