1.He left two days ago.
He has been away for two days .
He has been away since two days ago .
It is two days since he left .
Two days has passed since he left.
句行转换,对括号内的进行提问
2.They have been League members (since 2003)
How long have they been League members
3.Simon prefers the picture (on his left side)
Which picture does Simon prefer?
该错
4.Mr Wang has taught in our school since 10 years.
since ---- 改为for .
5.I'm very hungry.I haven't eaten something for a long time.
something ---- 改为anything
6.We have gone to Xi'an twice.We known it very well.
gone ----- 改为 been