Question

I always forget some news . I am very upset. and don' t know  _______ .

A．how to do.

B．when to do

C．what to do

D．what to do it

Answer 1

C

试题分析：句意：我总是忘记一些信息，我很沮丧，不知道该做什么。没有做的宾语，故用what,故选C。