----Haven’t seen you for ages.Do you still work in Zhengzhou?---__. It’s two years since I worked there .
________ your blog, I would have written back two days ago.
________ in his book, he didn't notice me ________ I entered the room.
How can you expect him to make any progress ________ you never give him a chance to have a try?
I'm sorry you've been waiting so long,but it'll still be some time ________ Brian gets back.
His mother likes to have him next to her ________ she can keep an eye on him.