单项选择题
A.bearings B.distances C.sections D.positions
Please return the notice to me（）due time.A.atB.onC.ofD....
单项选择题Please return the notice to me（）due time.
A.at B.on C.of D.in
Please return the copies attached（）your signature.A.ofB...
单项选择题Please return the copies attached（）your signature.
A.of B.on C.from D.with
Please report your position 4 hours（）advance.A.atB.forC...
单项选择题Please report your position 4 hours（）advance.
A.at B.for C.in D.to
