题目内容
30. Mike had to ask his father for help because he didn't know
A. what is wrong with his iPhone
B. whose dictionary was this
C. what was the matter with his bike
D. which group did he belong to
30. C
30. C本题考查宾语从句的用法。宾语从句应用陈述语序,再结合主句的时态可知C项符合题意。
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