句型转换（每空2分，共10分）These are her pens. (改为一般疑问句)
her pens?What can I do for you?(改为同义句)
Can I ?I have a ping-pong bat. (改为否定句)
I a ping-pong bat. This blue shirt is nine dollars.(对划线部分提问)
__________ __________ is this blue shirt? Are those your grandparents?
Yes,________ __________.(作肯定回答)
They started to play the piano one or two hours ago．（改为同义句）
They started to play the piano________ ________ ________two ago．
We started to skate two hours ago．（对画线部分提问）
________ ________you start to skate？
He ran in the school for half an hour．（对画线部分提问）
________ ________ ________he run in the school？
Neither this answer nor that one is right．（改为同义句）
________ ________the answers________right．
I have been to the Space Museum．（对画线部分提问）
________ ________you________？