6．根据对话内容从方框内选择恰当的单词填空，注意用其正确形式．
A：Good morning，Anna．
B：Good （96）morning，Dale．
A：What（97）arethese？
B：They're（98）pencils．
A：Are these your pencils？
B：No，they're not（99）mine．They are Bob's．
A：And is this（100）his green pen？
B：No，it（101）isn't．The blue pen is his．
A：What（102）about this dictionary？B：It's Helen's．And the green pen is hers，（103）too．
A：And the eraser？Is that yours？
B：（104）Yes，it is．
A：（105）Thanksfor your help，Anna．
B：You're welcome．
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| are mine about thanks his yes morning pencils isn't too |
B：Good （96）morning，Dale．
A：What（97）arethese？
B：They're（98）pencils．
A：Are these your pencils？
B：No，they're not（99）mine．They are Bob's．
A：And is this（100）his green pen？
B：No，it（101）isn't．The blue pen is his．
A：What（102）about this dictionary？B：It's Helen's．And the green pen is hers，（103）too．
A：And the eraser？Is that yours？
B：（104）Yes，it is．
A：（105）Thanksfor your help，Anna．
B：You're welcome．