Coke is ____unhealthy drink,but water is _______ healthy drink.

问题描述:

Coke is ____unhealthy drink,but water is _______ healthy drink.
A、/; / B、a; a C、an; a D、a; an
—Is pork healthy food
— _________ .
A .Yes,it is B .Yes,they are
C .No,it is D .No,they aren’t.

C
A