An act of giving consent or authorization. It uses modals can, could and may.
A. Prohibition
B. No obligation
C. Obligation
D. Permission

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Infinitive GerundVocabulary and GrammarDefinite vs Zero Article Abstract NounsPast simple regular verbsVOCAB & GRAMMARFuture Tense VerbGrammar - used toPast Continuous TenseVerb Tenses and Past ParticiplesZero & First ContidionalOther quiz:
Grammar › ViewThe match was postponed until next Saturday because of the bad weather.
=> The weather _____________________________________
A. The weather bad so the match was postponed until next Saturday
B. The weather was bad because the match was postponed until next Saturday
C. The bad weather so the match was postponed until next Saturday
D. The weather was bad so the match was postponed until next Saturday
Grammar › View
Which words are verbs in the sentence:
When dolphins talk to each other, they squeak and whistle.
A. Talk
Squeak
Whistle
B. Talk
C. Talk
Whistle
D. Squeak
Talk
Siti says we should eat enough … be healthy.
A. to
B. in order to
C. so that
D. although
Grammar › View
There are two people _______ the elephants.
A. behind
B. in front of
C. between
D. next to