__________ the result of the examination, he went to the teacher's office to ask about it.
| A.Not having informed of | B.Having not informed of | 
| C.Not informing of | D.Not having been informed of | 
—I wonder why Sara looks worried today.
 —I'm not sure,but she      a small accident driving here.
| A.could have | B.might have | 
| C.might have had | D.must have had | 
—It’s reported that over 1billion people watched the live opening ceremony of___ 2010 South Africa World Cup on TV.
 —Yes, news came as____ shock to me.
| A.the; the | B.x; a | C.the; a | D.a; the | 
Restaurants in every corner of Mianyang not only provide job opportunities but___ lots of taxes as well.
| A.bring in | B.bring about | C.result in | D.result from | 
Such animals as dinosaurs died out because they couldn’t ___ to the sudden change of the climate.
| A.suit | B.keep | C.adapt | D.switch | 
—I can’t imagine Phelps smoking marijuana (大麻).
 —______.
| A.Neither am I | B.So do I | C.Me, too | D.Nor can I |