问题描述：
what 's wrong with the bike?i didn't know.合并成一句.
i didn‘t know what was wrong with the bike.为何不是i didn't know what wrong with the robot was.从句的主语不应该是what wrong吗?难道是what?
i didn‘t know what was wrong with the bike.为何不是i didn't know what wrong with the robot was.从句的主语不应该是what wrong吗?难道是what?
问题解答：
我来补答展开全文阅读