Iguesswe’vealreadytalkedaboutthisbeforebutI’llaskyouagainjust.
A.bynature
B.inreturn
C.incase
D.bychance
正确答案:C解析:本题考查介词短语。分析四个选项的意思:bynature天生地;inreturn作为回报,作为交换;incase万一,以防;bychance偶然地。根据句意:我想我之前已经跟你谈论过这件事,但是以防万一,我再问你一次。

Iguesswe’vealreadytalkedaboutthisbeforebutI’llaskyouagainjust.
A.bynature
B.inreturn
C.incase
D.bychance
正确答案:C