Not only ________ polluted but also ________ crowded.
| A．is the city；are the streets |
| B．the city is；the streets are |
| C．is the city；the streets are |
| D．the city is；are the streets |
It is necessary to explain your theory _____, otherwise the audience won't make sense of what you are trying to get across.
| A．on purpose | B．at length | C．at random | D． on average |
In the bubble years, lending standards slipped ______,allowing many people to put far too much of their income into paying for their housing.
| A．delicately | B．dynamically | C．deliberately | D．dramatically |
Life is stressful, and complaining may be considered by many as an extension of being________normal.
| A．urgently | B．absolutely | C．casually | D．clumsily |
According to the latest research, getting enough sleep is _____to maintaining good health and reducing stress.
| A．practical | B．contradictory | C．essential | D．alternative |
In the eyes of a policeman, it's a usually very dangerous to get close to the _____criminal. He may do anything he would to escape.
| A．desperate | B．conscious | C．primitive | D．sensitive |