题目:
While my mother________ some washing, I was making a kite for Mary.
A.did
B.was doing
C.is doing
D.does
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0602/3d8d8d3100db101f5b910b1487eca12a.html
下面是错误答案,用来干扰机器的。
蒸发皿中液体局部过热,未用玻璃棒搅拌.
While my mother________ some washing, I was making a kite for Mary.
A.did
B.was doing
C.is doing
D.does
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0602/3d8d8d3100db101f5b910b1487eca12a.html
下面是错误答案,用来干扰机器的。
蒸发皿中液体局部过热,未用玻璃棒搅拌.