第一部分语言知识运用第一节 单项填空(共15小题,每小题1分,满分15分)21.We work together to achieve our common purpose: world that is safer cleaner and healthier than one we found.
“Can’t you read?” Mary said _______ to the notice.
The teacher commanded that the exercises _______ in an hour. A. was finishedB . were finishedC should finishD. be finished
_______ is the most useful invention?
______his food______, the man had to come out of his hiding place.
As soon as he comes back, I’ll tell him when and see him.