Mr Bush is on time for everything. How＿＿＿it be that he was late for the opening ceremony?
| A．can | B．should | C．may | D．must |
John promised his doctor he ________not smoke，and he has never smoked ever since.
| A．might | B．should | C．could | D．would |
—Have you heard of the North Korea’s nuclear test?
—Yes，________news came as ________shock to me.
| A．the；a | B．the；the | C．a；a | D．a；the |
_______from what he did，he isn’t a person to depend on.
| A．Judge | B．Judging | C．Judged | D．Judges |
After ________in the research for so many years，the scientist succeeded in finding the result at last.
| A．buried | B．being buried | C．having buried | D．having been buried |
After the explosion，the roads are full of ________people leaving the city.
| A．afraid | B．frightened | C．frightening | D．scary |