everyday是什么時態yday前加什么介詞

　　I go swimming every day in order to keep fit.

　　我每天游泳以保持健康。

　　It is important for him to attend every day.

　　他每天都要出席，這很重要。

　　It is important that he should attend every day.

　　他每天都要出席，這很重要。

　　I go to the store most every day.

　　我幾乎每天都去商店。

　　For maximum effect do the exercises every day.

　　每天鍛煉以取得最佳效果。

　　She does an hour's piano practice every day.

　　她每天練一小時鋼琴。