[ Modal Verbs ]
Don’t leave your window open at night. Someone ________ climb in.
A. might
B. can’t
C. couldn’t

Random Topics:
Sentence Types and ConjunctionsVerb + Infinitive or GerundDefinite & Indefinite Pronoun & ConditionalsPresent and Past Perfect TensesAdverb of Frequency and Past Continuous TenseGrammar - Nouns, Verbs, and AdjectivesModals of Obligation & ProhibitionVerb Tense, Pronouns and AntecedentsPresent Tenses: Simple vs ContinuousGrammar - could / could notOther quiz:
Grammar › ViewI find writing reports a real ________. I find it very boring.
A. work
B. chore
C. thing
D. assignment
Subject Verb Agreement › View
The band _____ been practicing day and night.
A. has
B. have
Grammar › ViewMy cat Bart is ………………. my cat Lisa.
A. bigger
B. biger than
C. bigger than
D. more big
Modal Verbs › View
You ……… spend too much time playing computer games. It’s bad for your eyes.
A. should
B. must
C. shouldn’t
D. can
