A.\(x \in \left\{ {1;\,\,2021} \right\}\)
B.\(x \in \left\{ { - 1;\,\,2021} \right\}\)
C.\(x \in \left\{ { - 1;\,\,2020} \right\}\)
D.\(x \in \left\{ {1;\,\,2020} \right\}\)

A.\(m\left( {m - 1} \right)\left( {m - 6} \right)\)
B.\(m\left( {m - 1} \right)\left( {m + 6} \right)\)
C.\(m\left( {m + 1} \right)\left( {m - 6} \right)\)
D.\(m\left( {m + 1} \right)\left( {m + 6} \right)\)

A.\(\left( {x - 1} \right)\left( {{x^2} + x + 4} \right)\)
B.\(\left( {x - 1} \right)\left( {{x^2} - x + 4} \right)\)
C.\(\left( {x + 1} \right)\left( {{x^2} - x - 4} \right)\)
D.\(\left( {x + 1} \right)\left( {{x^2} + x - 4} \right)\)

A.\(\left( {x + 2} \right)\left( {2{x^2} - x + 2} \right)\)
B.\(\left( {x + 2} \right)\left( {2{x^2} + x + 2} \right)\)
C.\(\left( {x - 2} \right)\left( {2{x^2} - x - 2} \right)\)
D.\(\left( {x - 2} \right)\left( {2{x^2} + x - 2} \right)\)

A.\(\left( {3x + 1} \right)\left( {x - 2} \right)\)
B.\(\left( {3x - 1} \right)\left( {x - 2} \right)\)
C.\(\left( {3x + 1} \right)\left( {x + 2} \right)\)
D.\(\left( {3x - 1} \right)\left( {x + 2} \right)\)

A.obvious
B.probably
C.finally
D.supposing

A.mischievous
B.outgoing
C.caring
D.shy

A.convince her
B.dissuade her
C.encourage her
D.deter her

A.familiarize
B.chat
C.greet
D.assimilate

A.not using spoken language
B.using hand-eye coordination
C.using spoken language
D.not using hand-eye coordination