29。Two nurses_______________________and helped the doctor during the child’s medical check up.I (A)a

問題詳情

29。Two nurses_______________________and helped the doctor during the child’s medical check up.I
(A)assist
(B)assisted
(C) assisting
(D) has assisted

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)