what were you doing when he came in?____ my mother with her housework.
A.Helped B.Help C.Was helping D.Helping
人气：180 ℃ 时间：2020-03-20 00:57:44
解答
选D
前面省略了 I was
推荐
- what were you doing when he came to see you?
- they,what,doing,teacher,the,in,came,were,when
- what were you doing when mom came in ? my sister asked me ,改同义句
- what were you doing when he arrived
- 简述句子“What were you doing when the rainstorm came"中,谁是从句,是什么从句,为什么?
- 求(1-x)+(1-x)^2+……+(1-x)^100的展开式中x^3项的系数（结果用组合数表示）
- a为锐角,tan(45度＋a)=2.求sin2acos2a-sina/cos2a的值求大神帮助
- 阿尔弗雷德·贝恩哈德·诺贝尔的作文
猜你喜欢
