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If our body does not have enough ________ cholesterol, we may not be able to survive. On ________ other hand, if the body has too much cholesterol, the excess begins to line the arteries.
A. the / an
B. Ø / an
C. the / Ø
D. Ø / the

Random Topics:
Sentence Structure and Verb TensesConnectivesVerbs & AdverbsSimple Present TenseHow much and how manyPast SimplePast Simple TensesPassive Voice & TensesPresent tense AffirmativeClauses and ConjunctionsOther quiz:
Tenses › ViewI didn’t find Paul
A. Present Simple
B. Present Continuous
C. Past Simple
D. Past Continuous
Can vs Could › View
I _____ ride a mountain bike easily. I usually go biking every morning.
A. can
B. can’t
C. could
D. couldn’t
Grammar › ViewNick ___ come to the beach with us because he has to study for a test.
A. can’t
B. has to
C. can
D. doesn’t have ot
Word Form & Verb Tense › View
Pessimists point out that both global warming and pollution have increased _____ over the past twenty years
A. rapid
B. rapidly
C. rapidity
D. rapier