They were still working on their designs when they saw an op
A man saw YU Gong and his family when they (were working on)
the fans were getting excited when they saw their favourit
When I saw them last time,they were working ___ the farm.A a
they were talking to their teacher.I saw the students.(用when
They were students when they were in their( )
They felt confident when they saw their own value翻译
It was late at night,but they were still going on ( )their h
They were on their way to the university when their car was
They carried on working though they were very tired
They were working _________(
They were surprised to know that their son still stayed_____
No,they 're still working on it.是否可以改为:No,they're still repa