[ Phrasal Verb ]
Flouride greatly helps ……………. tooth decay, so it’s commonly used in toothpaste.
A. prevent
B. cause
C. prolong
D. conclude
Select your answer:
Random Topics:
Grammar - Present Perfect TenseFuture Perfect vs Future ContinuousThe Present Progressive TenseDemonstrative Pronouns and Verb TensesModals AuxiliaryQuestion TagsPhrasal Verbs with up and downSimple Past Future TenseAuxiliary WordsFuture Continuous TenseOther quiz:
Conditional Sentence Type 0, 1, 2, 3 › ViewIf children (not/eat) well, they (not/be) healthy.
A. doesn’t eat / weren’t
B. don’t eat / are not
C. didn’t eat / will not be
Verb Tenses › View
. What does future perfect tense indicate?
A. An action that is happening now
B. An action that will be finished by a certain time in the future
C. An action that happened a long time ago
D. A repeated action