---They have discussed the problem for hours .---have they c
---They have discussed the problem for hours .---have they c
They have already discussed the report(give)____by the depar
have they discussed the question?变被动语态?
They have had the problem solved.
they have had the problem solved
only after they had discussed the matter for several hours _
they have been here ___ two hours ago.A.for B.since C.before
They must have played computer games for several hours,didn'
单句改错1、We have discussed the problem for quite some time,but
at the school gate,they,have waited,since two hours ago,for
英语翻译The workers have worked for eight hours .They are_____ _
句型转换 1.They have been talking for the whole three hours.(改成一