1.The rock ______wears away due to the action of the water .
AGradually B.exactly C.loosely D.fluently
2.He is a _______visitor to that country .I mean ,he often goes there .
Agrateful B.loose C.frequent D.native
3.So fluently does he speak English that he is often considered as a (an )_____.
A .official B. teenager C .native D .accent