【单选题】--You didn't write to Tom
-- ______ him, too
A．Must I write to
B．Must I have written to
C．Should I write to
D．Ought I to have written to
【单选题】--You didn't write to Tom
-- ______ him, too
A．Must I write to
B．Must I have written to
C．Should I write to
D．Ought I to have written to
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