In the old days the working people in our country __________ ( look) down on.
I have studied English for four years．（对画线部分提问）
________ ________have you studied English？
I spent two hours cleaning my room yesterday．（改为同义句）
It________me two hours________ ________my room yesterday．
Harvey had a great time at Water World last Sunday．（改为同义句）
Harvey________ ________at Water World last Sunday．
（上海）John asked，“Can you look after my pet dog while I’m away？”（合成宾语从句）
John asked________I________look after his pet dog while he was away．
Has your brother finished his homework？（作肯定回答）
Yes，________ ________．