Is he Wu Yifan? __A. Yes,you’re right. B.Yes,he isn’t. C.No,he is.
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?