For there ______ successful communication, all present must be attentive and get

游客2023-10-16  25

问题 For there ______ successful communication, all present must be attentive and get involved in the discussion.

选项 A、is
B、to be
C、will be
D、being

答案 B

解析 for表目的,动词不定式作独立主格。  
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