From time to time a crocodile has snatchedsomeone _______ he or she is even aware that the crocodile is there.

Johnson was much depressed as he didn’t sell half as many computers as he thought he____．

I just wonderthat made Mark Twain so famous a writer.—Of course his early experiences.

He insisted that the book _______ to the school library at once.

s not an economical way to get more water; , it is very expensive.