HaveyouheardofEarthDay?Yes,Weh

---Have you heard of Earth Day?
--- Yes, We have only one Earth. We have no choice but ________ it.

A．protect

B．protected

C．protecting

D．to protect

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—Morning! _______ you Mr Huang? —Yes. My name ______Huang Heping.

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B．Is, is

C．Are, are

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A．this is

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A．What color

B．What

C．Where

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—What’s this? —_______________.

A．This is a pen.

B．That’s a pen.

C．It’s a pen.

D．They are pens.

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