He never smokes _______ drops litter in public.( )
and
or
but
So
You _______ write the report again because spelling mistakes are not allowed at all.( )
may
can
must
could
Parents should always tell their kids ________ with strangers.( )
not to talk
not talking
to not talk
not talk
He was so angry that he could say_________.( )
anything
nothing
something
everything
He has many friends at school._____?( )
has he
does he
doesn't he
isn't he
Mary____ a math problem with her classmates when the math teacher knocked at the classroom door.( )
has discussed
was discussed
was discussing
discusses