`B)`

`1.` isn't reading

`2.` are you doing

`3.` isn't listening - is doing

`4.` is sitting

`5.` are (you) studying

`6.` is (always) making

`7.` is wearing

`8.` is getting

`9.` are - are playing

`10.` is coming

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`-` Thì HTĐ: DHNB gồm: always, usually, often, sometimes,... Sau Look!/ Listen!/ Be quiet!/...

`+` Với động từ thường:

$(+)$ S + V(s/es).

$(-)$ S + do/ does + not  + V_inf.

$(?)$ Do/ Does + S + V_inf?

`+` Với động từ tobe:

$(+)$ S + is/ am/ are + ...

$(-)$ S + is/ am/ are + not + ...

$(?)$ Is/ Am/ Are + S + ...?

`+` I/ We/ You/ They + V_inf.

`+` He/ She/ It + Vs/ Ves.

`-` Thì HTTD: DHNB gồm: now, at present, at the moment,...

$(+)$ S + is/ am/ are + V_ing.

$(-)$ S + is/ am/ are + not + V_ing.

$(?)$ Is/ Am/ Are + S + V_ing?

`+` I + am.

`+` You/ We/ They + are.

`+` He/ She/ It + is.

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$@haanx2$