1.Lan: “Are you American?” – John: “__________”





2.A: “Would you like some more tea?” – B: “__________.”





3.A: Could I have an early morning call at 6.30? – B: ____________.





4.She doesn’t know __________





5.Do you mind ___________the cooking?





6.Most of the goods ____________in this factory are exported





7.February has ___________ days than March





8.When ___________as food, the root of this plant should be soaked in water overnight





9.It’s difficult ___________high scores in this test





10.__________ of health makes us miserable, and a burden to ourselves and our friends