The meeting ______going on since eight o’clock this morning.

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问题 The meeting ______going on since eight o’clock this morning.

选项 A、has been
B、was
C、is
D、will be

答案A

解析 An action that starts in the past and continues to the present uses the present perfect tense. Choice (B) is the past tense. Choice (C) is the present. Choice (D) is the future.  
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