What is a very small hill called?
hummock
Fearing further attacks, most of the people had _____ (= given up) their city.
abandoned
An adjective to describe something from the plane or in the air
aerial
If your face ______, it becomes whiter than usual because you have had a shock
pales
Niagara Falls is the natural ______ between the US and Canada.
border
Someone who belongs to the race of people who have lived in Australia from the earliest times
Aborigine
War could threaten the peace and social ______ of the region.
stability
A large desert animal with a long neck and either one or two humps
Camel
Hong Kong became Chinese ________ (lãnh thổ) in 1997.
territory
