这扇窗子是绿色的吗?
( ) What do you want to be ____ the future ? A. on B. in C. at
( ) ____ your mother an actress ? A. IsB. Are C. Does
( ) He is ____ actor . A. a B. an C. one
( ) _____ does your father do ? A. What B. How C. Who
( ) Let _____ introduce my parents to you A. I B. me C. my