David, ______you please sweep the floor and take out the trash?( )
Could
may
might
must
Nobody teaches Mary English. She teaches ______.( )
her
herself
she
Did you do _____ during the last summer vacation?( )
something special
special something
anything special
Bob has few friends in his new school, _____?( )
hasn't he
does he
doesn't he
What time is it?
It's half _____ seven.( )
past
to
at
We can't leave here until our teacher _____.( )
will arrive
arrives
arrived