1．Three new schools have been opened (open) in our city in the past five years.
2．It is said that the bridge has been closed (close) for repairs for months.
3．Great changes have taken (take) place in my hometown and you can see that a lot of factories have been set (set) up.
4．It is the first time that the old computer has been checked (check) since I bought it.
5．I'm going to deliver a speech about how to deal with troubles.
6．All the preparations for the task have been made (make)，and we're ready to start.
7．We were talking about the TV play，and his sudden appearance(appear) stopped our conversation.
8．The traffic policeman signaled the driver to stop (stop) for a check.
9．Watch out for cars when you cross the road.
10．The old man talked about the things that he had experienced while living(live) in that small village.
