You shall get a film ticket free _______ you use your credit card twice this month.
Those who are of great determination are ____ to make great achievement.
_____ the high price, demands for these cars are very high.
The first textbooks written for teaching English as a foreign language ___ in the 16th century.
The records of S.H.E are____ being bought, for their songs can bring energy into us.
How many nationalities ______ our country ______?