2. 外语
  3. For there ______ successful communication, there must be attentiveness and involvement in the discussion itself by all present.

For there ______ successful communication, there must be attentiveness and involvement in the discussion itself by all present.

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问题 For there ______ successful communication, there must be attentiveness and involvement in the discussion itself by all present.
选项 A、is
B、to be
C、will be
D、being
答案B
解析 非谓语动词题。there be句型在介词for后使用时，用there to be结构，在介词of后面使用时，用there being结构。故B正确。
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