14. The teacher insisted _______ until we finished the work.
With the development of science and ________,Internet will play a more and more important part in our life.
The lab ________ construction will be completed next month.
Please remember to put everything ________ before leaving the room.
—We haven't seen basketball star Jordan for a long time. —He ________ the stage last year.
It took a great deal of courage to admit that all their efforts had been ________.