[ Grammar ]
Organisms living millions of years ago produced energy using retinal, which was _____ dark purple colour.
A. a
B. an
C. the
D. The
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PhrasesGrammar - FuturePerfect Tenses and VocabularySimple Present Negative and QuestionPronounciation and GrammarComparative AdjectivesFuture or PastSpeculation with Modal Verbs-ed/-ing AdjectivesSimple Present vs Present ProgresiveOther quiz:
Grammar › ViewMy sister cries if she … a nightmare.
A. have
B. has
C. will have
D. won’t have
Vocabulary › View
What does “let into” mean?
A. To allow someone to enter a place
B. To make someone stay awake
C. To forget about something
D. To tend to someone’s needs
Irregular Verb › ViewThink (Past tense)
A. Thought
B. Taught
C. Thank
Gerunds and Modals › View
I can to have a party in my house anytime!
A. CORRECT
B. INCORRECT