从右边中选择合适的答案回答左边的问题,把序号填到前面的括号中。
This city is famous _______its springs.
They went to school ______foot before and now they go to school _______bike.
He_____lookhappywhenwewerethere.
Theseoldpeopleprefertoliveclose_____thehospital.
Yourbedisprettier, _____it?