[ Modal Verbs ]
We __________ pollute rivers. It kills fish.
A. don’t have to
B. mustn’t
C. should
D. can

Random Topics:
Modals TensesPast Simple Negative & QuestionsGender and GrammarComparatives - SuperlativesCorrelative conjunctionsDeterminersPrepositions and Adverbs-ing form and the to-infinitiveArticle and Order of AdjctiveRun-On SentencesOther quiz:
Phrasal Verb › ViewJesisca __________________ a new recipe in that magazine.
A. come up
B. come over
C. come across
D. come around
Conjunction › View
I did not attend the party ______ I have to take care of my sister.
A. Until
B. Because
C. So
D. But
The man in brown shoes _____ running.
A. is
B. were
C. are
Many vs. Much › View
Which ice-cream do you want ? / I don’t know. There are ……………………… flavours (= vanilla, chocolate, strawberry…)to choose from.
A. Enough
B. Too much
C. Too many
