It ______ quite correct that happiness comes from thinking about things in a positive way.
| A．has turned out | B．has been turned out | C．is turning out | D．is turned out |
Thousands of protesters _______ major roads in the central business area of the city for weeks, leading to much inconvenience for many Hong Kong citizens.
| A．knocked off | B．blocked off |
| C．knocked out | D．blocked out |
It is common to see electric bicycles, often _______ as e-bikes, racing down the road, especially in major cities of China.
| A．referring to | B．referred to |
| C．referred | D．to be referred |
Students are pushed to their limits in the hope that once they complete their education, their efforts will pay off _______ a stable career with a good company
| A．in spite of | B．in case of |
| C．in the form of | D．in the face of |
Chinese martial arts have quite a long history, and they have become _______ to Chinese culture.
| A．specific | B．unique |
| C．conventional | D．equal |
Charles Dickens once said, “Never close your lips to those _______ you have already opened your heart.”
| A．who | B．that | C．whom | D．whose |