(White and black) light, (if mixing) (in) the right proportion, (will show) us grey.

admin2013-01-03  21

问题 (White and black) light, (if mixing) (in) the right proportion, (will show) us grey.

选项 A、White and black
B、if mixing
C、in
D、will show

答案B

解析 应改为if mixed。应用过去分词mixed表示被动。
转载请注明原文地址:https://jikaoti.com/ti/eSiYFFFM
0

最新回复(0)