[ Subordinating Conjunctions ]
The officer notified us that _____ we clean our surroundings, mosquitoes will continue to multiply.
A. if
B. unless
C. than

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Simple Verb TensesPresent, Past, and Future TimeFuture Tenses, Conditionals and ProfessionsSimple and Past TensesLinkers and ConjunctionsComparatives, Superlatives & EquativesSimple Present TensePrepositions and TensesFirst Conditional, Future Time ClausesGerunds, Infinitives and Modals of PossibilityOther quiz:
Modal Verbs › ViewWe … ask for directions because we were lost.
A. had to
B. didn’t have to
C. will have to
D. don’t need to
Determiners & Quantifiers › View
How________students are there in your class?
A. little
B. few
C. much
D. many
Grammar › ViewThere has been no _________ from my cat today. She must be sick.
A. movements
B. moving
C. moves
D. movement
Grammar and Vocabulary › View
I’m afraid of …..
A. height
B. heights
C. highs
D. highness