It was not until dark _____he found _____he thought was the correct way to solve the problem.
| A．that; what | B．that ; that | C．when; that | D．when ;what |
______ can be more exciting than the news that the Chinese national football team has reached the tournament knockout stage (淘汰赛阶段) at the Asian Cup.
| A．Nothing | B．Everything |
| C．Anything | D．Something |
— How do you like the trip to Tai Wan?
— We _____ there for a week. It’s a fantastic place and well worth visiting again.
| A．had stayed | B．have stayed |
| C．stayed | D．will stay |
To persuade drivers to ______ checking their phones whenever they beep, New York state plans to introduce so-called Texting Zones along its major highways to make sure of the drivers’ safety.
| A．allow | B．resist | C．admit | D．insist |
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 |