A careful ______ led to the discovery of a new fossil?
A. design
B. encouraged
C. investigation
D. solution

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Who am I?Perfect and Past TensesFuture Continuous, Future Perfect and Future Perfect ContinuousGrammar : can, could and be able toPassive Voice of TensesPreposition on TimePast Simple and ContinuousIdiomsInfinitive GerundSimple Future TenseOther quiz:
Vocabulary & Grammar › Viewa detail, plot type, or character type that occurs frequentlyin literature
A. bipartisan
B. commemorate
C. archetype
D. coherent
Grammar › View
I forgot to take ________ pencils for my friend.
A. a
B. an
C. (nothing)
Grammar › ViewWhich sentence is punctuated correctly?
A. After we ate lunch we went to a movie, ate popcorn and did some shopping.
B. During the long, intermission of the play everyone chatted about the first act.
C. Dad cooked a fancy, and, delicious dinner and I set the table with our best dishes.
D. Due to the earlier malfunction, the aviation mechanic double-checked the wires.
Grammar › View
Identify the collective noun.
The flock of sheep grazed in the hills.
A. flock
B. grazed
C. hills
D. sheep
