_____several times，but unfortunately，the boy still couldn’t smooth away the prob
题型：不详难度：来源：
_____several times，but unfortunately，the boy still couldn’t smooth away the problem on his own.| A．Having been explained | B．The problem having been explained | | C．The problem had been explained | D．Although the problem had been explained |
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答案
| C |
解析
| 由连词but可知，前面应该是一个完整的句子，只有C项符合。若去掉but，答案可选B：分词的独立结构，也可以选D：although引导的让步状语从句。 |
举一反三
A new subway will have been completed in the city by the end of the year 2007 , will be very convenient for us to get around shopping and sightseeing.| A．when it | B．where it | C．when that | D．which that |
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_____ wants to study well must learn things _____.| A．No matter who; with heart | B．Who; with his heart | | C．Whoever; by heart | D．Whoever; by his heart |
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| This is such a wonderful film ___ we have never seen. |
-----Did Mr Black resign his post as principal?
-----No,________ was telling a lie.| A．whoever told you that | B．those who told you that | | C．No matter who told you | D．Anyone told you that |
A 句意：Mrs Black 辞去校长职务了吗？没有，不管谁告诉你的，他都在说谎。Whoever引导的主语从句，相当于anyone who。如果选B，则those作主语，谓语应用were。 C项引导让步状语从句，不能引导主语从句；D项错误，应改为Anyone who told you that。 |
The exciting news has spread all over the world______the satellite around the moon succeeded in returning to the earth.| A．which | B．that | C．whether | D．what |
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