The price of pork has not been kept under control as expected, and _____ is more surprising is that the price has risen by 15% just in the past few months．
| A．that | B．which | C．what | D．it |
--- 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 |
Research found that children who drank mainly soda were more than twice as likely as those who drank no soda _________ signs of aggression.
| A．showing | B．shown |
| C．to show | D．show |