I don't know____ he is going to the party or not tonight;I'll call him to check

I don't know____ he is going to the party or not tonight;I'll call him to check
A whether B that C what D which
英语人气:896 ℃时间:2019-12-01 12:52:23
优质解答
选A whether 和 后面的 or not 相呼应
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