Question

るわ

後ろが過去形なのに、空欄が現在完了になるのはなぜですか？教え下さい！！

108. Mr NussDaum -一-- to a three-year contract with Nussbaumさんは、 自社で3Dヲリ

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Decker after his company made 3D prnting              相国なああと、Dectek
technology feasible。                                               生生 の
(A agrees

(B) agreeing

(C) has agreed

(D) has been agreed