Dear Mr。Ning
I need to apply for four days’ leave of absence from June 7 to 10， for I’ll return home to see my mother， who is badly ill now。
To support my application， I herewith submit ca telegram from my father。 I should be very much obliged if you would grant me your permission。 As regards the lessons to be missed during my absence ，I will try to make them up with as soon as I get back from leave。
I am waiting your instructions。
Your respectfully，
Wang Qing
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