Kate’s dad is getting old.She will go back home to see him________it is convenient.
--- Don't forget to come to our school assembly(集会)tomorrow morning.--- I won't. I was_______ just now.
---Excuse me, Where is our English teacher?---Look, she is on the playground ________an yellow scarf today.
--- Did you enjoy the famous lecture last weekend?--- Yes, I did. It was ______broadcast, and I think it was wonderful.
After discussing, the students __________ some good ideas to solve the problem.
---I heard your grandpa used to be a teacher. --- Yes. He was a Chinese teacher ______.