I guess Tom and his sister Celia enjoyed ______ at the party.

Have you returned the book to the library _______?—Yes, I have _______ retuned it.

My mother didn’t go to the movies.Her ticket was given to a friend of hers.________.

_________ you _________ the terrible news about Libya?—Yes, I _________ it this morning. The people there will suffer from the war.

_____ do you visit your grandfather? —Once every two weeks.[ ]