In an experiment, pet owners are being encouraged to take their pets to work, a move _______ can be good for both the people and the pets.
| A．that some scientists say | B．in which some scientists say |
| C．some scientists say that | D．some scientists say |
Since then the population of London________by almost 50,000 a year—an increase largely fuelled by immigration.
| A．has risen | B．have risen |
| C．rises | D．rise |
—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 |