they were all very tired but --- of them took a rest

they were all very tired but --- of them took a rest
a\ none
b\ all
c\ both
d\ either
说理由!
英语人气:682 ℃时间:2019-10-19 13:14:31
优质解答
选择A:none


前面出现了all,说明人数在三个或三个以上,否定要用none

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