________ to be the greatest writer of plays in the English-speaking world, Williams Shakespeare is more famous than he was in his own lifetime．

A．Considered                                          B．To be considered

C．Having considered                               D．Considering

--- Who has made a mess in my room?

--- Who else ________ it but your naughty son?

A．could                                           B．could have done

C．should                                        D．should have done

The rules require that two security guards ________ present at all times．

A．be           B．were           C．would be           D．must be

King’s philosophy found its greatest _______ in 1963 with his speech “I have a dream”．

A．impression         B．expression         C．explanation        D．expectation 

They started off late and got to the airport with minutes to _______．

A．spare         B．catch         C．leave          D．make

She produced six completed novels, ______ deal with the problems and limitations of women’s choices．

A．all of them           B．all of those          C．all of that          D．all of which

--- English, as a living language, ________ all the time．

--- Right．Who knows what it will be like in the years to come?

A．will change          B．was changing         C．is changing         D．has changed

The girl had not slept long ________ the coach stopped, the door was opened, and she saw a servant standing there．

A．while               B．until                 C．after                D．when

Let us suppose that we ________ him about it, what would have happened?

A．had not told           B．did not tell            C．will not tell         D．don’t tell 

After much ________, the shop owner agreed to cut down the price by 20%．

A．debating          B．talking          C．discussing          D．bargaining