单项选择题
Goldfish and hamsters all die.（）.
A.So do us B.So we do C.So are we D.So do we
单项选择题 No matter how old you are, when you go out into the world, it（）to hold hands and stick together.
单项选择题 （）interesting story it is!
单项选择题 （）he had not hurt his leg,John would have won the race.
