The light______ by Edison is helpful for people.

It’s 8 o’clock in the evening. Tom ______ TV.

下列各句的句式，与其他三句不同的一句是（ ）

is a really lively party. There’s a greatatmosphere, isn’t there— ________ The hosts know how to host a party.

_______chocolate bread you want is done now．—What ________delicious smell!