I, who ____ your teacher, will try my best to help you with your English.
The old town has narrow streets and small houses _____are built close to each other.
When I got on the bus,I_____I had left my wallet at home.
I'm sorry I didn’t phone you,but I've been very busy_____ the past couple of weeks.
---Are you going to Tom’s birthday party? ---________.I might have to work.
He had his camera ready ____he saw something that would make a good picture.