[ Modal Verb ]
We __ pollute rivers. It kills fish.
A. Don’t have to
B. Mustn’t
C. Should
D. Can
Select your answer:

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Present Simple with Adverbs of FrequencyPassive Voice & TensesProgressive Tenses-ing form and the to-infinitiveSo or SuchVerbal and Appositive PhrasesComparison DegreeAdjectives and PrepositionsPronouns, Verb, ConjunctionGrammar-Verbs & Nouns Singular, Plural, GenderOther quiz:
Subordination Conjunctions › View__________ bake cookies, we decided to make a cake for her birthday.
A. Rather than
B. Since
C. Unless
D. Because
Basic Grammar › View
We have ___ aunt and ____ uncle.
A. We have an aunt and an uncle.
B. We have a aunt and a uncle.
C. We have aunt and uncle.
