Playing tricks on others is_________we should never do.
| A．anything | B．something | C．everything | D．nothing |
Their use was limited by laws, the first of which ______ the 14th century.
| A．dates back to | B．dated fro |
| C．dates back | D．dating back to |
_____ I see someone wearing a mask, I think of my holiday in Venice.
| A．Even if | B．Until |
| C．Whenever | D．Although |
All happy families _____ one another, but each unhappy family is unhappy in its own way.
| A．resemble | B．are similar |
| C．similar to | D．resemble to |
I don’t think the old man saw me—he _____ a newspaper.
| A．is reading | B．had read |
| C．read | D．was reading |
Greatly encouraged by what the teacher said, the boy returned to his seat, ____ to study harder.
| A．being determined | B．to determine |
| C．determined | D．having determined |