__________the burglar from the second floor when the house owner found him stealing last night.

–I think it’s going to be a big problem.--Yes, it could be. --I wonder ________ we can do about it. 

Students used to_____ information from newspapers or magazines, but now they are used to ______ for it on the Internet directly.

Let those in need________that we will go all out to help them.

Even on holidays, he preferred doing something________