[ Conditionals and Modals of Probability ]
Unless you ____ louder, your classmates won’t understand you.
A. didn’t speak
B. had spoken
C. don’t speak
D. speak

Random Topics:
The Present Progressive TenseGrammar - First ConditionalPassive Voice - Present TensesWish SentenceGrammar-Present Continuous-Sentence MakingPast and Future TensesComparative and Superlative AdjectiveNoun ClausesMixed TensesGrammar - too & enoughOther quiz:
Grammar › ViewDon’t ride so fast, you ____ have an accident.
A. Must
B. Ought to
C. Could
Personal pronouns + possessive adjectives + Introgative pronouns › View
Our grandmother is Italian. ____ is from Milan.
A. We
B. She
C. He
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A. the
B. (-)
Grammar › View
The cat ______ going to sleep.
A. am
B. is
C. are
