she goes to work at 6:30（）7:30 答案填at为什么填at这句话什么意思呢?

She goes to work at eight thirty.(改为一般疑问句) She goes to work at eight thirty.改为同义句 she goes to work at eight thirty ,改为同义句 she goes to work by motor She goes to work everyday.该一般现在时 She goes to work with some food. she （goes to work） at 9:00 就括号部分提问 —does she —at 9:00? She goes to work at eight thirty.的同意句是什么? 改为一般疑问句 She goes to work at seven in the morning She usually goes to work at eight fifteen in the morning 改为同义句 What time does your mother usually goes to work,Brown?She usually goes to work at _____A half past eight B half to eight No,he goes to work at nine?问句No,he goes to work at nine.问句 she goes to bed at ten e____night She works very harder.She goes to work early.改错 she gets up early at 6.she goes to work at6:30（）7:30.she must get here.答案为什么填at,怎么翻译这段话. He goes to work at 7 am and goes back from work at 5 pm. she usually goes to work by bike .(同义句) she usually --------a bike to work .she usually goes towork ----- ------bike. she goes to work at 6:30（）7:30 答案填at为什么填at这句话什么意思呢?