The children _____lost in the woods; otherwise, they would have been at the lakeside camp as scheduled. 

---You are sweating. ______ I fetch you some water?  ---It’s so kind of you. 

I looked everywhere for the book, but I ______find it

--- Shall I get one more cake fro you, David?--- Thanks, but you ______. I’ve had enough.

Hurry up, or you ______ catch the train.