Formanyyears,peopleelectricear-优题课

For many years, people __ electric ears. However, making them has been more difficult than predicted.

A．had dreamed of

B．have dreamed of

C．dreamed of

D．dream of

科目英语题型单选题难度较易

知识点：动词语态

It is very difficult to ___ his mind because he is always changing his mind.

I don’t think the two parties can ____ agreement in the near future.

Yesterday I was invited to the dinner at invited to the dinner at ____.

I tried every _____ to make him give up smoking.

Being poor, she had to borrow a new ____so as to attend the party.