单选题—I don’t know ______.—Because he has to look after his mother.Awhy he is leavingBwhy is he leavingCwhether he is leavingDwhether is he leaving
单选题
—I don’t know ______.—Because he has to look after his mother.
A
why he is leaving
B
why is he leaving
C
whether he is leaving
D
whether is he leaving
参考解析
解析：
句意：——我不知道他为什么离开。——因为他必须要照顾他的妈妈。本题考查宾语从句。由答句的because可知，问句是问“为什么”，排除C、D项。宾语从句要用陈述句语序，故正确答案是A项。
句意：——我不知道他为什么离开。——因为他必须要照顾他的妈妈。本题考查宾语从句。由答句的because可知，问句是问“为什么”，排除C、D项。宾语从句要用陈述句语序，故正确答案是A项。
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