—Is the woman a teacher? —Yes. She teaches ________ English. 

 —Is this your baseball, David?   —No, it's not     . It's Helen's.

—When shall we meet again?—Make it _____ day you like. It’s all the same to me.

--Mom, these are my friend Peter and __ brother Bill.--Welcome to our home. Come in, please.

Eating _______ sweet food is not good for our health (健康).