[ Auxiliary Verbs ]
In most developed countries, people ______ need to boil water before they drink it.
A. don’t
B. does not
C. have not

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Conjunctive AdverbTenses and FoodAdjectives vs AdverbsSecond ConditionalsTenses and VerbsGerundsAdverbs & to beModals and TensesPrepositions of Time, Place, and MovementModals for Ability, Possibility and PermissionOther quiz:
Vocabulary & Grammar › ViewOn the farm, uncle Duong showed us how to ________ cucumbers.
A. plough
B. produce
C. pick
D. put up
Participle Adjectives › View
My brother was very __________ that he only got a D in his exam.
A. disappointed
B. disappointing
Grammar › ViewKen is going to beach ____ Sunday.
A. next
B. last
C. ago
Vocabulary › View
one of the large veins that return the blood from the head to the heart through two chief trunks, and external and an internal, on each side of the neck
A. jugular
B. riffle
C. grieve
D. dormant
