______ is no need for primary students to work at their desks all the long.

There is no ____ thinking more about the matter. Take it easy.

The heavy snow stopped the farmers ______ in the fields.

. Mary was only too ready to help others, seldom, _____, refusing them when they turned to her.

(2009安徽合肥质检) She was so angry at all ______ I was doing ______ she walked out.