[ Present Perfect Tense ]
Research ________ that cycling can help patients overcome their illnesses.
A. Showed
B. Has shown

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Regular Plural NounsDescribing WordsModals and TensesGrammar Error Correction (Simple Present Tense)Verbs and Subject Verb AgreementConjunctions and PrepositionEnglish ArticleGrammar - much, many, a lot ofVerb Present Simple TenseGrammar - Place and MovementOther quiz:
Grammar › ViewInk is ______ useful article.
A. a
B. an
C. no article
D. the
Tenses › View
When _______ leaves for work in the morning, he makes sure to pack his thermos.
A. Frank
B. Mrs. Janda
C. students
D. them
Pronouns, Sentence Structure, and Apostrophes › ViewI’m guessing that you _____________ will be responsible for fixing the damage.
A. Yourself
B. Myself
C. Itself
D. Himself
E. Herself
General Knowledge › View
Which is the language spoken by most people?
A. Answer of C&D
B. FRENCH
C. SPANISH
D. MANDARIN
E. NONE OF THE ABOVE