They have been trapped for sevevteen hours.They tried to com
They have been trapped for sevevteen hours.They tried to com
they have been trapped for seventeen hours. they tried to co
They have been skating for five hours 同义句 They have been ska
他们已经工作两个小时了.They have been working for two hours.They have w
They have been working for__whole three hours.
---They have discussed the problem for hours .---have they c
句型转换 1.They have been talking for the whole three hours.(改成一
They have been practicing the guitar for two hours.(改为同义句)
they have been here ___ two hours ago.A.for B.since C.before
一空一词They have been taking for the whole three hours 改一般疑问句__
they have been talking for the whole five hours 变疑问句
_______小题1:______, they have been drilling for sixteen hours