the patient's son asked the doctor the question ____his father could survive.if和whether用哪个
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![the patient's son asked the doctor the question ____his father could survive.if和whether用哪个](/uploads/image/z/13453958-38-8.jpg?t=the+patient%27s+son+asked+the+doctor+the+question+____his+father+could+survive.if%E5%92%8Cwhether%E7%94%A8%E5%93%AA%E4%B8%AA)
the patient's son asked the doctor the question ____his father could survive.if和whether用哪个
the patient's son asked the doctor the question ____his father could survive.if和whether用哪个
the patient's son asked the doctor the question ____his father could survive.if和whether用哪个
the question 后面是个同位语从句,在名词性从句中,引导同位语从句时,只能用whether ,不能用if .