.
It is an established fact that factory workers work better, harder, and have _____ accidents when their machines are painted orange rather than black or gray.
| A．fewer | B．few | C．more | D．less |
—Don't always turn to particular patterns time after time in our life.
—I agree. We would otherwise________our thinking by rules or common attitude.
| A．inspect | B．limit |
| C．judge | D．recover |
Everyone knows how________feels to get so angry that you want to throw things or even hurt others.
| A．that | B．it |
| C．he | D．you |
Although the increase in the present sum used for the research is________， a great breakthrough could still be achieved by the end of this year.
| A．common | B．sudden |
| C．enormous | D．modest |
________the American economy expanded at an annual rate of 2.5 percent in July—September, it faced a long road to recovery.
| A．Since | B．If |
| C．While | D．When |
In an economy ________income per head used to rise by barely 1% a year, current growth rates feel like a miracle.
| A．when | B．whose |
| C．that | D．where |