It remains to be seen ____ he will solve the problem or not. A．thatB．whatC．which
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It remains to be seen ____ he will solve the problem or not. | A．that | B．what | C．which | D．whether |
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答案
| Ｄ |
解析
| 考察名词性从句。It是形式主语，真正的主语从句是whether he will solve the problem or not。Whether在句中不充当任何成分，指起引导作用，与or not连用。结合句意可知D正确。句意：他是否会解决这个问题有待于进一步观察。 |
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