Because of carelessness , he fell off the bike ____ .A.while he rode B. while riding C. while he is riding D. while on his bike 为什么选B,如何分析此题,请详解,谢谢.

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/09 12:32:05
xTRI~~jUbc$JBKvQC0a%i@j"7Z5ݧ99 Qo l+[HG"dM':nVɯx{C%m{-ː7:!Q؛XB'%|#Np&NzuFXc ,y?x2# !."Sïjŏs j|ì&}D an:.0<1:!òu\rԹAoΦjӿ#2uZxOء]G&pLOï"(DB>Ƙ ϒ R(3@q;kXc,,J}y[7vWV]-R>yV>@;D= sҬᘫT7Bae2%yD OSFiC9jN|A>r柍B^1x9 <ċJjP]?Kr󜴱X(#rIY]^Pܸ H%8\;U1 ,C4v&'R,Դ7&-=U 7,ףQ8Әgwvd