—Please drive ______ when you pass a school.—OK.
________a player , I’m looking forward ________ the 2008 Olympic Games.
Heilongjiang is in the _______ of China.
Your digital watch is quite nice. Where did you buy_____?I want to buy_____,too.
At the foot of the hill you could hear nothing but the_______ of the running water.
— Aren’t Sam and Helen in Class Three? — _______.