A.why did the teacher suddenly leave the classroom.
B.why did the teacher suddenly leave the classroom?
C.why the teacher suddenly left the classroom.
D.why the teacher suddenly left the classroom?

A.I lived where
B.did I live where
C.where did I live
D.where I lived

A.If happened between Julius and me
B.That happened between Julius and me
C.Happening between Julius and me
D.Whatever happened between Julius and me

A.What bothers me / that my friend is so talkative
B.What do I bother / my friend is so talkative
C.How bothers me / that my friend is so talkative
D.How do I bother / my friend is so talkative

A.which would you like
B.you would like it
C.whether you would like it
D.whether would you like it

A.what is his occupation
B.what his occupation is
C.that his occupation is
D.that is his occupation

A.Do you do
B.What will do after school
C.What do you do after school
D.What you do after school

A.How many you have read books / do you understand what you have read
B.How many have books you read / whether you understand have what you read
C.Books you have read / you understand what you have read
D.How many books you have read / whether you understand what you have read

A.Dung dịch nước vôi trong.
B.Dung dịch bari hiđroxit.
C.Dung dịch brom.
D.Dung dịch natri clorua.

A.
B.
C.
D.