— Why did you leave without a word of warning to John? — But what _____ otherwise? He never listens to me. [ ]
A.
could I have done
B.
would I do
C.
must I have done
D.
should I do
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【单选题】Under Port State Control (PSC), in general, ships will not be inspected within _____ of a previous inspection in an MOU Port, unless there are clear grounds for inspection.