Hearing her mean words，I stood there trembling and trying to ________ tears.[ ]

I feel it is you rather than the boy who _____ for being late for the speech. [ ]

I think Liu Mei sings best in our class. No one else sings .

The Green Great wall can stop the wind and the sand ____to the rich land in the south of China.

Though Sundays are ______ as a day for rest, we must make good use of them.[ ]