Psychologists conducted an ____ study about the negative effects of video games on young children.
A. extent
B. extensive
C. extensively
D. extend

Random Topics:
Mixed Present TensesGrammar - Place and MovementModal Verbs of PermissionNarrative Tenses & ConditionalsToeic VerbInterrogative PronounsMoods of GrammarAdjectives and comparisonsFuture PlansPresent Simple and Continuous TenseOther quiz:
Grammar › ViewHe hurt himself falling off his bike. I wonder ____________ he’ll be able to take part in the match tomorrow.
A. if
B. how
C. when
D. that
Grammar › View
Grammar: Section 1. Passive or Active Voice. Choose the correct option for the active and passive sentences.
I remember my sister helping me in the nick of time (en el último minuto).
_
A. I remember I was helped by my sister in the nick of time.
B. I remember myself being helped by my sister in the nick of time.
C. I remember being helped by my sister in the nick of time.
D. I remember helped in the nick of time by my sister.
Apostrophes and Grammar › ViewWe __________ standing in a line.
A. was
B. were
Negative Questions › View
When is a negative question used?
A. To show surprise or doubt
B. In an exclamation
C. When you expect the listener to agree
D. All of the above
E. None of the above
