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_4.That is a tree. (變復數(shù)) _______________________( )5. —Is that your uncle?—____.A.Yes, it’s B.No, he isn’tC.Yes, it is D.No, that isn’t( )6. —____ those your pencils?—Yes, ____.A.Is。 it is B.Are。 those areC.Are。 they are D.Is。 they are( )7. —What are these, Lily?—____.A.They are apples trees B.They are apple treesC.These are apple trees D.These are apples tree( )8. —John, ____ Jack.—Nice to meet you, Jack.A.he is B.this is C.this’s D.he’s( )9. —Hello, this is Wendy.Can I speak to Gina? —Yes, ____.A.Gina is me B.Gina, please