It was about 600 years ago __________ the first clock was made.A．thatB．untilC．be_刷题宝

题干

It was about 600 years ago __________ the first clock was made.

A．that

B．until

C．before

D．when

上一题下一题 0.85难度单项选择更新时间:2010-03-01 03:45:11

答案(点此获取答案解析）

小学学科试题库

初中学科试题库

高中学科试题库