[ Grammar ]
Lack of sport and bad eating habits ___ cause weight problems.
A. may
B. must
C. have to
D. should

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TimeGrammar: Have toAdverbial Clauses of Manner and ResultConditional Sentences Type 1Verb Tenses and Sentence StructureGrammar and Verb TensesArticles - rulesPresent Perfect and Simple Past TenseDegrees of ComparisonVerb and PrepositionOther quiz:
Grammar › ViewThough ______ excellent student, she failed the test.
A. is
B. being
C. an
D. Θ\ThetaΘ
Some vs. Any › View
Do you know ___ famous people?
a. some
b. any
Used to › ViewPeople in the past were slower in accepting ___________ than they are today.
A. generations
B. technological changes
C. traditions and customs
D. loudspeakers
Relative Pronouns › View
For ________ are these flowers?
A. whom
B. who
