257．Thanks to the application of new farming methods,output is now six times _______ it was before 2008.

A.that

B.what

C.which

D.when

258.The manager decides to give the job to _______ he believes have a strong sense of duty.

A.whoever

B.whomever

C.anyone who

D.those who

257.答案是B；

此处考查倍数的表达法。常见的结构有:1.A is X times 比较级than B;2.A is X times as 形容词院级 as B;3.A is X times what is…

258.答案是D；

注意从句中的谓语是have，若选A或C，从句谓语应改成has。