Fill in the blanks in the sentences below with the words or phrases from the box. (You may not know the meaning of all the words. Look such words up in a dictionary, or ask your teacher.)out of luck, mystery, true to his word, chores, semester, between you and me, look up
1.Some people find household ______ a bore, but I like to help at home.
2.Who stole the diamond is still a ______.
3.This ______ we are going to have a class exhibition.
4.______, the elf began to help Patrick.
5.Can you ______ this word in the dictionary?
6.I started early to be on time, but I was ______. There was a traffic jam!
7.She says she’s got a lot of books, but ______ I think most of them are borrowed.