题目内容
12．-I wonder_______．-Because he has to look after his grandmother．（ ）
| A． | why is John leaving | B． | why John is leaving | ||
| C． | whether John is leaving |
分析 --我想知道为什么约翰要离开．
--因为他不得不要照顾他奶奶．
解答 答案：B．
根据I wonder？再结合选项，可知I wonder后面是跟一个宾语从句，宾语从句中应该用陈述语序，即主语+谓语，所以排除A．再根据Because he has to look after his grandmother．是说因为他不得不要照顾他奶奶．那么这里询问的应该是原因，询问原因的话应该用why．故选：B．
点评 主要考查宾语从句，一定要注意宾语从句的引导词，以及宾语从句的时态和语序问题．把握好这几点，是做好此类题目的关键！
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