grammar A: 1
was snowing
grammar A: 2
went
grammar A: 3
had forgotten
grammar A: 4
had left
grammar A: 5
decided
grammar A: 6
had not flown
grammar A: 7
was waiting
grammar A: 8
called
grammar A: 9
had found
grammar A: 10
was walking
grammar C: 1
too many
grammar C: 2
not enough
grammar C: 3
little
grammar C: 4
much
vocabulary A: 1
canceled
vocabulary A: 2
subway lines
