____carefully for a long time, the opening was a great success
| A．To have been prepared |
| B．Having been prepared |
| C．To be prepared |
| D．Being prepared |
According to the air traffic rules, you should ________ off your mobile phone before
boarding.
| A．cut | B．put | C．call | D．switch |
Despite the language ________, they soon became good friends.
| A．conflict | B．barrier | C．misunderstanding | D．dilemma |
You’ve ________ the most important word in this sentence.
| A．left off | B．left out | C．left behind | D．left over |
Being a capable woman，Nancy ________ to be considered as merely a housewife.
| A．agrees | B．admits | C．refuses | D．rejects |
Mrs. White was so ________ in her work that she didn’t notice a stranger enter the office.
| A．absorbed | B．adjusted | C．focused | D．centered |