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

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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 › ViewThe fire burned down the house to cinders.
A. The house was burned to cinders by the fire.
B. The house was burned down due to cinders from the fire.
C. The house burned down to cinders by the fire.
D. The house was burned down to cinders by the fire.
Grammar › View
What is the superlative form of the following adverb?
efficiently
A. (the) more efficiently
B. the most efficient
C. most efficiently
D. the more efficient
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
