The direct steamer sailing ______ your port calls at our port on

The direct steamer sailing ______ your port calls at our port only around the end of the month.
A、under
B、on
C、with
D、for
【正确答案】:D
【题目解析】:sail for乘船往......,
句意:去你方港口的直达船要在月底左右才到我港。