he doesn't know (what should be taken) to start a business here. 是正确的吗?what此举中可当主语吗?
问题描述：
he doesn't know (what should be taken) to start a business here. 是正确的吗?what此举中可当主语吗?
答
这个句子完全正确.what在此引导宾语从句,同时又充当宾语从句的主语.