( )1 English is ____ very useful language.
A. a B. an C. the D. /
( )2. Excuse me, where can I buy some ____? There is a post office over there.
A. books B. food C. money D. stamps
( )3. Work harder, ____ you’ll fall behind.
A. and B. or C. but D. though
( )4. When is Tree Planting Day? It’s ____ March 12th.
A. at B. in C. on D. after
( )5. How much did you ____ for the ipad? More than five hundred dollars.
A. pay B. take C. cost D. spend
