When the clock ___ (strike) twelve,people set off firecrackers.

It was eight o'clock when I ___ the station. When the clock ___ (strike) twelve,people set off firecrackers. It was twelve o'clock ___ they finished the work.A.sinceB.whichC.thatD.when 1.it is about 600 years ago __ the frist clock was made.(that until when since)2.it was eight'clock ___ he came to school.it was at eight ___ he came to school.(that before since when ) what time is it when the clock strikes thirteen 谜语:when the clock strikes 13,what time is it? when i was reading ,the clock ---12 o'clock.strike 应该用什么形式 同义句转换 The meeting I attended finished at 10o'clock yesterday morningThe meeting I attended ___ ___ ___ ___ at 10o'clock yesterday morning The English class begins at nine o'clock.句型转换同义句___ ___ ___ the English class__? 适当形式填空They __(start) work at eight o'clock.My family ___(watch) TV every night.When do Mary's family ____(have) breakfast?The have maths in the morning,but we___(not have) When the chance ___ ___(到来),you should take it 2.The engineer worked in the faxtory when it was 10 o'clock.The engineer ______in the2.The engineer worked in the faxtory when it was 10 o'clock.The engineer ______in the faxtory ______10 o'clock. Don't come to the party at 5o'clock ,Please.(改为肯定句）___ ___ the party at 5o'clock ,Please. It's difficult for the lazy boy to wake up at 6 o'clock in the morning.（同义句转换）转换为下面这种形式.The lazy boy ___ ___ ___ ___ at 6 o'clock in the morning. My mum ___ ___ ___ when she saw the flowers in front of the door The mouse is behind the clock.(用when提问)怎么做 怎样修改病句When I was passing the National Hall,i heard the clock hit twelve. it was ten o'clock ___ we got home last nightA.that B.when C.since D.until