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:
Present Perfect Tense › ViewOur class ____________ 3 grammar quizzes so far this semester.
A. has had
B. had
C. have had
D. has having
Indefinite and Reflexive Pronouns › View
Is the underlined word an indefinite or reflexive pronoun?
People are kidding themselves if they think there is no other life out there.
A. indefinite
B. reflexive
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
