Not until he left his home _____ to know how important the family was for him.
#81061
A
did he begin
B
had he begun
C
he began
D
he has begun
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As we all know, every minute _____ full use of ____ our lessons will do good to us students.
#82447
A
which makes; studying
B
when made; to study
C
that is made; study
D
that is made; studying
Your brother promised to help me and ______the next day.
#82902
A
neither he did and neither did you
B
so he did and so did you
C
neither did he and neither you did
D
so did he and so did you
Only when they came ___________. 
#81587
A
I left the office
B
did I leave the office
C
left I the office
D
I did leave the office