[ Grammar ]
The hydrogen car is the ……….. car of all
A. clean
B. cleaner
C. cleanest

Random Topics:
Prepositions - ConjunctionsSentencesPast Tense vs Future TensePoetry VocabularyVocabulary Spelling GrammarGerundsConjunctions - ConnectorsConstrative ConjunctionModal PossibilitiesPresent Perfect TenseOther quiz:
Passive Voice › ViewShe ______________ taken to the hospital.
A. has
B. has been
C. has be
D. has is
Future Tenses › View
This time next week _______________ .
A. I will sit on the beach in Thailand
B. I will be sitting on the beach in Thailand
C. I will have sat on the beach in Thailand
Grammar › ViewI like _____ gloves.
A. that
B. those
Grammar › View
Which sentence has a modal showing possibility?
A. There are many cats that would make good pets.
B. He will be at home tonight.
C. It might rain tomorrow.
D. We should take him a card.
