2. In the springtime, I was invited to Madrid to attend a three-day conference which
was scheduled to end on a Friday afternoon. Because I had never visited the city
before and had been told of its attractions on several occasions, I decided to extend
my stay by a few days.
(法政大)
(NOTES) in the springtime [*] Madrid [FI-F(21)] conference []
be scheduled to do [~3FEC] attraction [] on several occasions []
by ~ 「~だけ」 (差を示す用法)