He ____ at the meeting, but his heart attack prevented him.
He ____ at the meeting, but his heart attack prevented him.
A、will speak
B、is going to speak
C、had to speak
D、was going to speak
【正确答案】：D
【题目解析】：【考点点击】本题考查过去将来体。【要点透析】 be going to do sth.表示打算、将要做某事。由题意“他本来打算在会上发言,但…”和but后面的句子用了过去体 prevented可知,应选D项
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