As a senior high student, you should your energy on how to master the skills of learning.
It was in this house ______ he heard some strange sounds.
----Where did you find the wallet? ---- It was at the stadium_____I played football.
Faced with a bill for $ 10,000, ________________ .
He had just reached home _____ a man called to see him.
—Did you study Japanese? —No, I didn’t. I just sort of _____ when I lived in Japan.