The gas price keeps rising, ________ an average of 7.7 yuan per liter this month.
| A．hit | B．to hit |
| C．hitting | D．hits |
I could tell he was surprised from the _____ on his face.
| A．appearance | B．view | C．sight | D．expression |
The book seems to have been _____ from various books and articles.
| A．pieced together | B．taken off | C．broken away | D．pulled out |
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.
| A．exposure | B．distribution | C．expansion | D．emission |
He left in such a hurry that I _____ had time to thank him.
| A．almost | B．even | C．nearly | D．scarcely |
There are usually at least two _____ of looking at every question.
| A．ways | B．directions | C．views | D．opinions |