He paid 30% of the price for the house , and promised to pay by the end of the month.
| A．those | B．the others | C．the rest | D．the other |
The computer system suddenlywhile he was searching for information on the Internet.
| A．broke down | B．broke out |
| C．broke up | D．broke in |
--- What is the model plane like?
--- Well, the wings of the plane areof its body.
| A．more than the length twice | B．twice more than the length |
| C．more than twice the length | D．more twice than the length |
When firstto the market, these products enjoyed great success.
| A．introducing | B．introduced |
| C．introduce | D．being introduced |
Mrs. Black doesn't believe her son is able to design a digital camera, ?
| A．is he | B．isn't he |
| C．doesn't she | D．does she |
--- Bob's taper recorder is so wonderful.
--- Mine is at least good, if not .
| A．as; better | B．so; very good |
| C．the same; the best | D．so; better |