Not only________ strict with us, but also ________for us.
| A．was the teacher; did he care | B．was the teacher; he cared |
| C．the teacher was; did he care | D．the teacher was; he cared |
The nationwide smog serves as a constant reminder, indicating that it’s high time we ______ on ourselves.
| A．would reflect | B．have reflected |
| C．are reflecting | D．reflected |
______ adequate water for all residents was, until only a few decades ago, a serious problem.
| A．Providing | B．Provided |
| C．Having provided | D．Provide |
The noise of a nearby construction site terrified the shrimps that need a quiet environment, and ______ caused their death.
| A．automatically | B．particularly |
| C．hopefully | D．eventually |
Due to the ______ of this medical technology, some diseases can be treated at an early stage.
| A．approach | B．appreciation |
| C．application | D．appointment |
Beijing’s bid for ______2022 Winter Olympics has driven public enthusiasm for winter sports to ______ new heights.
| A．a; the | B．/; / | C．the; / | D．/; the |