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was having had had had have had
have been are going to have gone will go
has lived have lived lived lives
are used to living are used to live have been used to living have been used to live
hadn't didn't can't weren't
are enjoying have been enjoying could have enjoyed had enjoyed
Transformed transmitted Transported Translated
have been are going to have gone will go
are enjoying have been enjoying could have enjoyed had enjoyed
has been in have been in went to has gone to
have come to have been to have come in have been in
B.C.D.四个选项中，选出可以填入空白处的最佳选项。 —When did the Greens come to China? —They_____ China for seven years. A.have come to have been to have come in have been in
have gone to have been to has come in have been in
they have quarrelled have they quarrelled they had quarrelled had they quarrelled
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