Before my father moved off, he told me again and again that I should ______ the rules and regulations of the school.
| A．make | B．watch | C．remain | D．observe |
Samuel Clemens, _______ as Mark Twain, was one of the most famous American writer.
| A．to know | B．to be known | C．known | D．knowing |
After several part-time jobs, he has now got a ________ job in a bank.
| A．precious | B．scary | C．specific | D．stable |
—Jackson had a car accident.
— He _______ have drunk so much and driven.
| A．mustn’t | B．wouldn’t | C．shouldn’t | D．couldn’t |
Rosa knows she is the eldest of the three children in the family, and she must work hard to _______ the other two. So she does.
| A．set an example to | B．make the most of |
| C．take a look at | D．play a trick on |
— The floor is too dirty.
— I know. It _______ for weeks.
| A．hasn’t cleaned | B．didn’t clean |
| C．hasn’t been cleaned | D．wasn’t cleaned |