Put the verbs into the correct past form. 4 ​Harry ………………. ………. . (do) a first aid course before, so he ………………. ………. . (know) what to do. ​5​Shelley ……………………. . (just/get) out of her tent when she ………………. ………. . (see) a venomous spider. ​6​Sarah ………………. ………. . (wander) for hours before the rescue crew ………………. ………. . (spot) her.