ned continuously for seven days, completely___________ our holiday

It was at that school ______ he realized his dream ______ he was going to be a teacher.

下列各句中加横线词语的意义和用法不相同的一项是（ ）

periment shows that proper amounts ofexercise, if regularly, can improveour health

What’re you going to doto protect the environment — Plant trees on sideof the river.