______ no doubt that 100 years ago animal testing was cruel but today animals in experiments are very well taken care of.
| A．It is | B．There is | C．This is | D．That is |
We spent many years studying the formation of rocks , experiencing many sufferings and even death. But our hard work in the end , and we made it.
| A．came out | B．paid off | C．made up | D．gave away |
University students who take out a loan to pay for their studies may be seriously when they graduate.
| A．in debt | B．in luck | C．in need | D．in doubt |
All countries need , timely and reliable climate information as well as high quality climate services , as they will benefit the whole humankind.
| A．abstract | B．particular | C．smart | D．accurate |
The government has devoted a larger slice of its national to agriculture than most other countries.
| A．economy | B．budget | C．resources | D．potential |
—Many people are worried that so many college graduates each year can’t find a job.
—There is no need to worry about it as the government is now making every to provide more jobs.
| A．measure | B．effort | C．effect | D．action |