the first clock with a face and an hour hand was made about 600 years ago谓语动词为什么用单数

It was about 600 years ago that the first clock with a face and an hour hand was made. It's two o'clock,when will the hour hand coincide with the minute hand for the first time?1、2、3楼全错！ it is 600 years since the first clock with a face and an hour hand was made.中since能换成before吗? It was about 600 years ____ the first clock with a face and hour hand was made.(that until before s the first clock with a face and an hour hand was made about 600 years ago谓语动词为什么用单数 What does tony do with the alarm clock 怎么区分the first,the first of all ,first of all ,at the first,to start with 这个英语题为什么选A不选DIt was about 600 years ago ( )the first clock with a face and an hour hand was made.A thatB untilC beforeD when The first clock was invented in China by Su Sung in 1088. The first class beings ______ 8 o'clock. A.about B.for C. at （讲解） 初一英语短文 完形填空Spring Festival is ______(在）the first day of the first lunar month.In Spring Festival,Chinese people _____(喜欢）having meals with thei _____(家人）,and playing fireworks in the open air.It's 11o'clock on Spri There's something wrong with the clock.和The clock doesn't( )的意思一样,括号里应填什么? It was about 600 years ago____the first clock with a face and an hour hand was made. It was about 600 years ago_______the first clock with a face and an hour hand was made.填什么? We should begin with the first one（对the first提问）.怎么提问? the building with a clock on it is Classroom Building 1.(the building with a clock on it 划线,对划线部分提问 Our first lesson___(begin)at enight in theOur first lesson___(begin)at enight in the morning and we___(finish)school at fouro'clock in the afternoon. A long journey begins with the first step