急！几道英语填空，高手进来！

1.Does success___(意味着)that you're rich or famous?

2.We need to plant___(更多)trees to make our enironment better

3.Day after day,she devoted ____(she)to research

4.These books may ____(keep)for two weeks

5.His grandfather__two years ago.He___for two years(die)

6.Our classroom____(clean)every day

means

more

herself

keep

died has dead

is cleaned

1.meaning....貌似有个DO SUCCESS IN DOING 答案我不认定

2.More

3.herself

4.be kept

5.died has died

6.cleans