[ TOEIC Grammar ]
Lasner Electronics’ staff have extensive ____ of current hardware systems.
A. know
B. known
C. knowledge
D. knowledgeable

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Vocabullary TestThere is or There areAdjectiveVerb to Be Tenses & Object PronounPast Perfect and Past Perfect Continuous TenseGrammar Double Object VerbsPresent Simple TensePronouns, Sentence Structure, and ApostrophesGrammar on ConditionalsGrammar Pronoun and Singular Plural NounOther quiz:
Tenses and Articles › ViewIt took me _____ hour to finish the homework.
A. a
B. an
C. the
D. –
Grammar › View
A: Mrs. Parkinson has had three accidents in the last month.
B: She ________ a very careful driver, then.
A. can’t be
B. shouldn’t be
C. must be
D. may be
Grammar › ViewSelect the correct form of the verb: “She ___ to the library every weekend.”
A. go
B. goes
C. went
D. gone
Mixed General Quiz › View
Select the meaning of the underlined word in the sentence.
Exogenous factors will affect the patient’s well-being.
A. Produced outside the body
B. Produced within the body
C. Produced by the kidneys
D. Hereditary
