已知函数f（x）=-x+ax-a+2的反函数f-1（x）的图象的对称中心为（-1

I'm thinking about what I'm going to do this summer.
Maybe I'll get a job. If I get a job, I'll have ____money to buy some new things. I'd like to have some new dresses ____ I start school again in September. I can also buy some books or some music CDs. I really love jazz(爵士乐)．I could buy some more CDs____my jazz collection. Or I can use the money ____tennis lessons. I can play tennis ____，but I'd like to learn to play it much better. Or maybe I can use the money to pay for the piano lessons.I'd like to learn to play the piano，too.
　　  If I don't get a job this summer, I'll visit my grandparents in San Francisco. They live in a beautiful old house ____ the sea. My grandparents are always very nice to me. They'll let me sleep late. I ____ have to get up until 10 o'clock every day. I'll eat delicious food because my grandmother is an excellent ____.  She  always cooks my favorite food. I'll also go to the ____ with my grandparents. Because I like swimming in the sea. My grandparents like to go to museums but I don't enjoy it so much, so maybe I'll ____to watch TV.

小题1:	A．less B．many C．a few D．enough

小题2:	A．because B．where C．when D．if

小题3:	A．in B．to　 C．at D．as

小题4:	A．to skate B．to pay for　 C．to spend D．to buy

小题5:	A．very good B．well　 C．better D．best

小题6:	A．in B．at　　 C．near D．to

小题7:	A．be able to B．won't　　 C．must D．may

小题8:	A．cook B．lawyer　 C．agent D．teacher

小题9:	A．museum B．San Francisco C．shop D．beach

小题10:

A．travel B．go to college C．stay at home D．lie on the beach