25 Last month I came to Britain. My English has improved a lot _______ I use it all the time.A unless B while C when D as
Oh, it's you, I'm sorry I _know you here.
Wherever I____________these days. I always carry my umbrella.
It is five years since my dear aunt ________ here.
It _______ nearly two weeks ________ I had received his letter.
----This returned Chinese scholar has become one of the top experts in this field. ----Yes,I know him very well.He_________in Africa with animals for eight years.