Computersfirstcameintouse.A.in-优题课

Computers first came into use ________.
A. in 1950s B. on the 1950s C. in the 1950s

科目英语题型单选题难度中等

知识点：介词短语

— How do you study for a test?
—working with friends.

Echo for half a month. She’ll come back in two months.

I don’t get writing practice.

— You used to be short,?

She hardly ever speaks English after class, for she is afraid mistakes.