单项选择题 The court would not accept his appeal unless______evidence is provided.(2013-77)

单项选择题 In the face of unexpected difficulties, he demonstrated a talent for quick,______action. (2010-70)

单项选择题 There is noconceivablereason why there should be any difficulty during the project. The underlined part can be replaced by all the following EXCEPT______.(2014-78)