1.Did you go -boating-----(boat) on the lake yesterday?
2.No one --came------(come) to the sale because of the weather.
3.Going camping in the rain -sounds----(sound) interesting.
二.按要求完成句子.
1.They saw an octopus in the Visitors' Center'.（划线部分提问）
划线的部分是an octopus
what did you see in the Visitors' Center'