Only after Mary read her composition the second time ________ the spelling mistake.(2012·天津)
#79832
A
did she notice
B
she noticed
C
does she notice
D
she has noticed
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Only when _______ 30 years old ______ to learn English.
#82625
A
was he; did he begin
B
he was; he began
C
he was; did he begin
D
was he; he began
_______the thick clouds, you would find the kite in the sky easily.
#79634
A
Had it not been for
B
If it were not
C
If it had not been for
D
Were it not for
__________both sides accept the agreement will a lasting peace be established in this region.
#81659
A
If only
B
Only if
C
unless
D
As long as
Neither is that _______ .
#83278
A
your nor is that mine
B
yours nor is that me
C
yours nor that is mine
D
yours nor is that mine
If unsolved, the problem of food safety may lead to more serious results.
#80315
A
having left
B
to leave
C
left
D
leaving