I believed, though I could be mistaken,______ he liked me.

Many workers were organized to clear away_______ remained of the World Trade  Center.

I think I was at school,  ______I was staying with a friend during the vacation when I heard the news.

Each time ________ they met, they would talk long hours together.

---What was the party like ?---Wonderful . It is years _____ I enjoyed myself so much .