26.He never regretted the anxious hours he had had ______ for the missing papers.
While through the old photos, I thought of many happy days.
The teacher advised Tom to what he saw and what he thought during his trip.
— My watch doesn’t work; I’ll get it . — Why not buy a new one. It’s too old.
Mrs. Chen devotes herself to teaching. We love and respect her very much.
It was the first time in my life that I the Great Wall. You can’t imagine how excited I felt!