[ Grammar ]
Robert Ballard invented an underwater robot. “An” is an article.
A. TRUE
B. FALSE

Random Topics:
Adverbial Clause / If / ComparativesToo or EnoughThird Grade ExamVerbs and Subject Verb AgreementDeterminers & QuantifiersPast Tense vs Present Perfect TensePrepositions and ConjunctionsAdverb or AdjectiveFragment, Comma Splice and Run -on SentenceVocabulary and Verb TensesOther quiz:
Grammar and Vocabulary › ViewChoose the best option to fill in the gap: Sometimes ____________ wears people out and is worse than the lack of sleep itself.
A. the desire to sleep who
B. to sleep the desire
C. the desire to sleep
D. to desire to sleep is
Phrasal Verb › View
employ
A. Take on
B. Take in
C. Take out
D. Take off
Grammar › View_______ is painting the picture?
A. Who
B. What
C. Where
D. When
Countable & Uncountable Nouns › View
My shirt is dry now. Have you got ___ iron?
A. a
B. an
C. some
