Barack Obama has taken personal blame ________ the security failures which led ________ the attempt to blow up a plane on Christmas Day．
| A．of; to | B．for; to | C．on; on | D．in; on |
The old woman ______ her sons and daughters ______ and see her from time to time.
| A．suggested; to come | B．hoped; to come |
| C．desired; coming | D．desired; to come |
It is rather ______ that we still do not know how many species there are in the world today.
| A．misleading | B．embarrassing | C．boring | D．demanding |
Men and women should be treated equally according to the law, but ______ there is great room for improvement.
| A．in reality | B．above all | C．after all | D．in return |
The world will be different, and we will have to be prepared to ______ the change.
| A．adapt to | B．adopt to | C．apply to | D．devote to |
The Prime Minister refused to comment on the rumor that he had planned to ______.
| A．discharge | B．dismiss | C．resign | D．resume |