(2013·高考北京卷)If we________a table earlier,we couldn’t be standing here in a queue.
#86616
A
have booked
B
booked
C
book
D
had booked
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If you were older, I ____ you to go there yesterday. 
#86863
A
would allow
B
should allow
C
would have allowed
D
had allowed
The little girl        ,but her family was too poor at that time.
#89335
A
could go to school
B
could have gone to school
C
must have gone to school 
D
can have gone to school