This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?
— These are _____ and ______ .
— ______ are from England.
— What’s ______ telephone number? — ______ telephone number is 6872-3651.
— Is Bill from Cuba ? —______ . He is from Canada.
— Goodbye, Miss Zhao. —________ .