6．Jack and Samantha ____________ for their wedding for a whole week but nothing is really done．
| A．have prepared | B．are prepared |
| C．have been preparing | D．prepared |
We should do more such exercises in the future，I think，_____ those we did yesterday.
| A．as | B．like | C．about | D．than |
Has it been warned that all the children in this area stay at their homes until the Flu has been controlled ?
| A．can | B．will | C．may | D．shall |
_________ smoking, he would not have got cancer in the lung.
| A．Was he given up | B．Had he given up |
| C．Did he give | D．If he gave up |
---“What do you think of the service here?”
---“Oh, _________ . We couldn’t have found a better place.”
| A．too bad | B．sorry | C．wonderful | D．impossible |
Modern forms of transportation and communication have done much to ______ the isolation（隔离）of life in Alaska.
| A．break down | B．break out |
| C．break into | D．break through |