[ Grammar ]
If people used cars less, the air ____ much cleaner. (to be)
A. would be
B. would have been
C. will be
D. was

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InfinitivesPast Perfect Tense and Past TenseModal Verbs and PermissionArticlesArticles & PrepositionComparison & Modal Verbs in Passive VoiceSpeech TensesGerund & ParticipleModal and Relative PhrasesFood VocabularyOther quiz:
Grammar › ViewWe _____ our friends at the park tomorrow.
A. will meet
B. are meeting
C. met
D. were meeting
Grammar & Vocabulary › View
Jim likes Karen, but she ____ like ____.
A. doesn’t …. him
B. don’t …. him
C. doesn’t … he
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A. antimony
B. coordinator
C. additive
Tenses › View
I (see) a doctor tomorrow, this headache is unbearable!
A. am seeing
B. see