[ Grammar ]
Every night the watchman turns on all the lights and …around the building every half an hour.
A. to be walking
B. walks

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Gerund, Infinitive & ModalsPrepositions after VerbsAsking & Giving AttentionAdverbial ClausesQuantifiers & Modals of ObligationTensesPassive with ModalsSimple Past Tense and Present Continuous TenseModals, Phrasal Verbs, Gerunds and InfinitivesComparative AdjectivesOther quiz:
Grammar › ViewIt ___ eleven years old.
A. am
B. is
C. are
D. be
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When Abigail, Emma, and Priya were young, they ____ do difficult exercises with ease. Can you guess what word fits here?
A. can
B. could
C. will be able to
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A. Healthy
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Which adjective doesn’t end with -er when we change it into its comparative form?
A. big
B. tall
C. good
D. modern
