1.there was a mistake,.........................................?
2. mr.smith usually remembered his wife's birthday,..................................?
3.your central heating doesn't work very well,............................................?
4. bill put his money in the bank,.........................................?\
5. the traffic is very bad these day,.................................?
6. mark and john are good friends of yours,........................................?
7. you can communicate by e-mail,..............................?
8. the bus leaves very twenty minutes,...........................................?
9. this tv show has become very popular,..............................................?
10. emma gave you the information,.......................................................?