As we often see,some people work best in tasks alone,____ others work best in groups.A.when B.since C.while D.because答案选C,我想知道A为什么不可以

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Asweoftensee,somepeopleworkbestintasksalone,____othersworkbestingroups.A.whenB.sinceC.whileD.because

As we often see,some people work best in tasks alone,____ others work best in groups.A.when B.since C.while D.because答案选C,我想知道A为什么不可以
As we often see,some people work best in tasks alone,____ others work best in groups.
A.when B.since C.while D.because
答案选C,我想知道A为什么不可以

As we often see,some people work best in tasks alone,____ others work best in groups.A.when B.since C.while D.because答案选C,我想知道A为什么不可以
While有“然而”的意思,较长用,虽然字典里when也有“然而”的意思,但不常见,要慎用