I( ) some shopping with my mother （ ) I ran into Linda.

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I( ) some shopping with my mother （ ) I ran into Linda.
A.did,while B.did,when C.was doing,while D.was doing,while 为什么选B,D为什么不正确啊,买东西不是一个过程吗?
选项有误D.was doing,when

while只能和延续性动词连用
do shopping是持续性动词
run into瞬间性动词
I(was doing) some shopping with my mother （when) I was running into Linda.

I( ) some shopping with my mother （ ) I ran into Linda. I___ some shopping with my mother when I ran into Linda. yesterday I goes shopping with my mother I often do some shopping with my mother in the s__at weekend I often do some shopping with my mother in that______ ______ Today I went shopping with my mother and my broth I go shopping with my mother.成分分析 i often go shopping with my mother 什么 saturday afternoon with I my go shopping often mother 连词成句 I'm going to shopping with my mother My mother will go shopping with A)I,B)me I go shopping with my mother on Saturday,I ( ) the shopping