四道填空,与up有关的动词短语,赐教:
1.ItwasverycoldsoI_____upmycoatbeforegoingout.
2.I____uptoapolicemanandaskedhimthewaytothestation.
3.MywatchhasstoppedbecauseIforgetto____itup.
4.Thesteamboat_____uptheriver.