Every device ______in the plane must be designed and made with great care so as to make sure that nothing goes wrong in operation.
---Have you finished all your exercises? ---Yes, ___ is left. As a matter of fact, they are as easy as ABC. A. nothing B. not one C. none D. neither
Nowadays people take___ exercise a day as they did in the past because of widely used automobiles.
They were standing so far away that I couldn’t_____ their faces clearly.
The dining room is clean and tidy, with a table already ______for a big meal.
____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.