Experts predict that the earthquake and tsunami will _________ among the costliest natural disasters on record.
| A．clarify | B．group | C．separate | D．rank |
______ from the space, the earth, with water _______ seventy percent of its surface, looks like a blue ball.
| A．Seen; covered | B．Seen; covering |
| C．Seeing; covering | D．Seeing; covered |
What troubled the teacher was that no one present made an answer when asked who had broken the glasses, so he didn’t know who .
| A．was blamed | B．was to be blamed |
| C．would be blamed | D．was to blame |
As we all know, it was _________ that resulted in the terrible car accident.
| A．because of her carelessness |
| B．because she was careless |
| C．her being careless |
| D．she was so careless |
Don’t answer the phone when the cell phone is being charged, for it ________ be very dangerous sometimes.
| A．shall | B．should | C．can | D．must |
Whatever happens , Ben, ________ drugs.
| A．doesn’t take | B．not take |
| C．not taking | D．don’t take |