File infectors are also called______viruses．A．filterB．parasailC．parasiticD．attack

__________ is also called National Day.A.Independence DayB.Thanksgiving DayC.ChristmasD.

The heir to the Britain Crown is also called _______？A．Prince of ScotlandB．Prince of Wales

Irritable and inflamed lungs are also seen in people with ______.A．asthmaB．lung diseasesC．

______is the smallest state in Australia and is also called "the Apple Isle and the Holida

______is（are)considered as "the backbone of the continent" in America, and is（are) also kn

The upper class is also called the out－of－sight class because______.A．they don" t communic