按要求完成下面各句，每空一词（含缩写）。
【小题1】My mother was taking a shower when Maria called. (改为一般疑问句)
__________ __________ mother taking a shower when Maria called?
【小题2】Last Tuesday Jill didn’t do her homework and Mary didn’t do it, either. (改为同义句)
Last Tuesday Jill didn’t do her homework and __________ __________ Mary.
【小题3】I borrowed some interesting books from my friend.    (改为同义句)
My friend __________some interesting books__________me.
【小题4】I was calling my mother when the plane took off.     (对划线部分提问)
What __________ you __________ when the plane took off?
【小题5】Paul cleaned his room this morning.
(用at this time of yesterday替换this morning改写句子)
Paul __________ __________ his room at this time of yesterday.