30. It is said that Columbus Day is ______ the arrival of Christopher Columbus in the New World in the USA. A. in honor of B. for the honor of C. in favor of D. in place of
________ that they can’t be shown in the maps.
_______ different life today is from_________ it was fifty years ago!
Never should we forget the war and sufferings _________ caused to the people.
This software______ protect computers from being attacked by viruses and it took my brother a long time to ______ how to start it.
— Oh, you sounded just like a native. — ______. I still have trouble expressing myself.