句型转换.(共10分)
He has shorter hair than Sam.(一般疑问句)
    he      shorter hair than Sam？
Sam is thin.  Jim is fat.(用比较级合并)
Sam is        than Jim .
I don’t buy the watch because it’s expensive. (提问) 
______  don’t you ______ the watch?
My mother gave it to you. (提问)               
______  ______ it to you?
I bought something for my father。(一般疑问句) 
_____ you _____  for you father.