The last half of the nineteenth century _____ the steady improvement in the means of travel.
| A．has witnessed | B．was witnessed | C．witnessed | D．is witnessed |
We all breathed a sigh of relief when the news came _____ no one was injured in the accident.
| A．why | B．that | C．whether | D．which |
“I am astonished, my dear,” said Mrs. Bennet, “that you _____ be so ready to think your own children silly.”
| A．might | B．could | C．would | D．should |
— Don’t be too ______ with what you wear as a middle school student.
— Come on, Mom, stop being _____ on me all the time.
| A．controversial, strict | B．particular, hard | C．considerate; keen | D．flexible; offensive |
This nationwide smog should serve as a reminder to all, indicating a high time that we ______ on what we've done to the environment.
| A．have reflected | B．are reflecting | C．will reflect | D．reflected |
The Chinese abacus(算盘), officially ______ as a cultural heritage at the 8th Annual UNESCO World Heritage Congress, is another symbol of Chinese wisdom.
| A．having listed | B．listed | C．having been listed | D．listing |