957.The man made another discovery,_____ of great importance to science.
A.which I think it is
B.one that I think it is
C.one that I think is
D.that I think is
958.On the contrary, I think it is John,_____ you,_____ to blame.
A.more than;are
B.less than;who are
C.rather than;is
D.rather than;that is
957.答案是C;此题中one作discover的同位语，后接that引导的定语从句，其中I think为插入语。
958.答案是D;I think it is John rather than you who/that is to blame.意为：正是约翰，而不是你应受责备。尤其注意其中的主谓一致。
