Idon’tknowwhoinventedtelephone-优题课

I don’t know who invented ________ telephone. It’s really ________ most useful invention.

A．the; a

B．/; a

C．a; the

D．/; the

科目英语题型单选题难度中等

知识点：冠词的用法辨析

The police are trying to find out the _______ of the woman killed in the traffic accident.

Working abroad for many years, he has made a big _______ and started a company of his own.

--- Julia, what were you doing when Anna called you?
--- I ________ my housework and was starting to take a bath.

The flowers his friend gave him will die unless _________ every day.

________, or we will be late for the meeting.