難度：★   考點(diǎn)：動(dòng)詞的用法

　　1.-Listen,the music_____________sweet.

　　-It's Yesterday Once More,my favorite.

　　A.sounds   B.smells   C.feels

　　2.-Our classroom____________every day.

　　-So it is.It's our duty to keep it clean and tidy.

　　A.cleans   B.iscleaning   C.iscleaned
 
　　3."Have you ever been to Tokyo?""Yes,I______there twice.It's a modern city."

　　A.havegone    B.havebeen    C.hadgone

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