please concentrate on what you are doing中的what有什么用啊?
问题描述:
please concentrate on what you are doing中的what有什么用啊?
答
What引导宾语从句,作concentrate on的宾语,在从句中做doing的宾语.
please concentrate on what you are doing中的what有什么用啊?
What引导宾语从句,作concentrate on的宾语,在从句中做doing的宾语.