按要求改写下列句子。每空一词。
This bike is eighty dollars．(对划线部分提问)
______ ______  ______this bike?
Can I help you?(改为同义句)
______ can l ______ you?
She has a cool clothes store．(改为否定句)
She______ ______ a cool clothes store．
How much is the sweater?(改为同义句)
______the______．______ of the sweater?
1 want a green T-shirt．(对划线部分提问)
______   ______ you want?