[ Time Clauses of Future ]
Don’t call the emergency number ______ it’s a real emergency.
A. unless
B. if
C. as soon as

Random Topics:
Passive Voice - Present TensesPresent Tense (Negatives and Questions)Gerunds, Infinitives and ParticiplesGrammar - help/have/let/makeAdjective ending with ED & INGDefinite and Indefinite ArticlesSentence Types and ConjunctionsPast Perfect and Past Perfect Continuous TenseModal SpeculationWH- Question WordsOther quiz:
Vocabulary › ViewWhat is livestock?
A. Animals kept on a farm and used to produce sellable items
B. A cutting and chopping tool
C. Dry material to light a fire
D. Branches of a tree
Grammar › View
Of all the fruit stands in town, Baker’s is the ______.
A. newer
B. older
C. oldest
Identifying Tenses › ViewKathy was doing her homework.
Tom and Leila were watching TV.
I wasn’t doing anything.
A. Past simple
B. Past continuous
C. Past perfect simple
D. Past perfect continuous
Grammar › View
She wishes she ______ more money to buy new computer.
A. has
B. had
