同义句转换 It's very easy for me to find his office.I had ___ ___
同义句转换
It's very easy for me to find his office.
I had ___ ___ ___ his office.
Shall we meet at half past two?
What ___ ___ at half past two?
China joined the WTO in 2001.
China ___ ___ a member of the WTO for 5 years.