If you eat     chocolate, maybe you’ll be fatter（更胖的）.

--- Middle school students hardly know anything about shopping online, ____ they? --- ________. It’s very popular with teenagers.

Linda was unhappy when you went to see her, _______?

He had a good time at yesterday’s party, _________ he? _________. He danced and sang.

There were few new words in the English competition for your daughter,_______?