Good heavens! There you are! We _____ anxious about you, and we _____ you back throughout the night.
| A．are； expect | B．were； had expected |
| C．have been；were expecting | D．are； were expecting |
It is reported that Beijing and Zhangjiakou（张家口）will compete to host the 2022 Winter Olympics, which will _____ China’s social development.
| A．interest | B．benefit | C．gain | D．contain |
With the Internet widely used, a(an)___change has taken place in the way people communicate with one another.
| A．approximate | B．independent | C．fundamental | D．Agricultural |
When Mr. Smith took over the company, it was already heavily______ and had no money to pay the workers.
| A．in danger | B．in relief | C．in debt | D．in return |
Children need a lot to grow up, but ________ they need love and care.
| A．above all | B．in all | C．at all | D．after all |
Our earth is getting warmer and warmer. It is time for us to_____ the emission(排放) of CO2.
| A．break down | B．cut in | C．cut down | D．cut off |