. —Where is our English teacher? —She is in the classroom, _____ the exercises _________ the students have done at home.
—Would you mind giving your advice on how to improve our business management? —If you make _____most of the equipment,there will be _________rise in production.
They found there was_____ to weigh such an elephant.
There is a board by the road, which _____ “Parking_____!”
In order to produce more grain, it________that the area of farmland_____.
---Do you like the new pen? ---Yes, it_____ smoothly.