—Hi, Johnson, any idea where Susan is?
—It’s class time, so she _____ in the classroom now.
| A．can be | B．must have been |
| C．might have been | D．should be |
In the past few years, sea ice ____ in the Arctic as a result of global warming.
| A．had melted | B．has been melting | C．melted | D．is melting |
Peter told us the work would be finished by next month, _____ personally I doubt very much.
| A．that | B．when | C．which | D．it |
By the time our teacher arrives tomorrow,all the work _____,with which he will be satisfied.
| A．is accomplished | B．will have been accomplished |
| C．will be accomplished | D．has been accompished |
We’re running out _____________ fuel.
| A．of | B．for | C．/ | D．with |
There’s no doubt2013 will bring more change when the world economy is still unclear.
| A．what | B．that | C．how | D．where |