摘要:6.A.No.it is. B.Yes.it is. C.Really.
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--Is this a backpack? --________.
| A.Yes,it is. | B.Yes,it’s a case. |
| C.No,it is. | D.No,it’s a backpack. |
--Is this a backpack? --________.
| A.Yes,it is. | B.Yes,it’s a case. |
| C.No,it is. | D.No,it’s a backpack. |