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most children are interested inamazing things,and they wonde

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most children are interested inamazing things,and they wonder---------
A,how can elephants walk on tiptoe
B,why do fish sleep with their eyes open
C,why there is no plant life without light
为什么选C,还有怎样判断是陈述句,还有陈述句的组成
正确选项只有C.
原因是:
1、and 【they 并列句主语】【wonder谓语】+【宾语从句——陈述语序】
2、选项辨析:
A,how 【can elephants walk 】on tiptoe 【疑问语序】
B,why 【do fish sleep 】with their eyes open 【疑问语序】
C,why there is no plant life without light 【陈述语序】
因此,排除A,B.
区分语序方法:
特殊疑问语序:
特殊疑问词+助动词(have,has,had,do,does,did)
+情态动词(can,may,must,will,would,shall,should,might 等)
+be动词(am,is are,was,were等)
祝你开心如意!