(2010·江西)Not until he left his home ________ to know how important the family was for him.
#79825
A
did he begin
B
had he begun
C
he began
D
he had begun
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These problems, __________, will seriously affect the growth of teenagers and even the nation’s future.    
#82644
A
solved properly
B
if solved properly
C
not if properly solved
D
if not solved properly
 Not until he left home ________ the importance of his family.
#80238
A
he realised
B
did he realise
C
he did realise
D
realised he
Next to the pots ______, upon which the man could work metal.
#82098
A
lay a cushion stone
B
did a cushion stone lay
C
laid a cushion stone
D
did a cushion stone lie
  Not until he got to the factory _______that he had lost his papers.
#83272
A
he found
B
did he find
C
had he found
D
has he found
--- Can I use the fax on the table, sir? --- In no case _____ to use the fax for personal affairs.
#81711
A
anyone is allowed
B
nobody is allowed
C
is anyone allowed
D
is nobody allowed