It is required that the project should be finished at once

It is required that the project should be finished at once It is necessary that the problem be settled at once. 英语翻译It is required that the instrument should be tested befo it is the most important task that should be finished soon It is important that the committee__about the project at onc 英语翻译It will be 5 years before the project is finished 后面要不要用 The teacher required that all errors should be ()before the It is requested that all members (should) be present at the it is advisable that the message___sent at once. It is cruicial that the plan ( ) at once 19.It is necessary that the problem ( ) at once. The teacher insisted that the work should be done at once同义句