Youdsoundalotmorepoliteifyouma-优题课

You'd sound a lot more polite if you make a requesta question.

A．

in search of

B．

in the form of

C．

in need of

D．

in the direction of

科目英语题型单选题难度中等

知识点：介词

--How long are you staying? ---I don't know. ____.

Fruit juices can be harmful ___ children’s teeth.

--Have you fed the dog?---No, but ____.

The farmers were more anxious for rain than the people in the city because they had more ______.

As is often pointed out, knowledge is a two-edged weapon which can be used ______ for good or evil.