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_____ river is very polluted. Do you think we can clean up _____ river?
A. The / a
B. A / the
C. The / the
D. A / a

Random Topics:
DEGREE COMPARISONSimple Present Negative and QuestionWill and Going toVocabulary : Coming & GoingModals and Modal PerfectsGrammar and PrepositionKinds of NounsVerbal CommunicationTOEIC GrammarTenses and StructureOther quiz:
Grammar › ViewThe ocean seems to have no end. It’s so ____________.
A. vast
B. small
C. stormy
D. calm
Prepositions › View
Don’t be angry. I’m not laughing ___ you. I’m laughing _____ you.
A. With / at
B. At / at
C. On / through
D. At / with
What does the highlighted adverb in the following sentence answer?
Once there lived a very poor couple.
A. when
B. how
C. where
D. to what extent
Grammar › View
We must insert the correct key into the ________.
A. pigtail
B. Keyhole
C. Seat belt
D. scrapbook
