The first clock was invented in China by Su Sung in 1088.

The first clock was invented in China by Su Sung in 1088. It was about 600 years ago that the first clock with a face and an hour hand was made. It was about 600 years ____ the first clock with a face and hour hand was made.(that until before s The first class was English. it is 600 years since the first clock with a face and an hour hand was made.中since能换成before吗? 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 The clock has stopped ;The clock Was stoppedThe clock has stoppedThe clock Was stopped那句是对的?has was 分别在什么时候使用啊? 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 When was the saying first used?翻译 I was born on__ the first意思 the first Thanksgiving was in________.(怎么写?) Who was the first premier of RPC? When was the first Earth Day celebated? the first telephone was invented in()kkkkk! Do you know whom__a.the first watch was inventedb.was the first watch inventedc.the first watch was invented byd.the first watch was invented of Amy Johnson was the first woman to_______ The first factory was built in _____ Marice Curie was the first person to______________