1£®Somebody phoned while I was out£¬didn't they?

2£®Everything seems all right now£¬doesn't it?

3£®This is important£¬isn't it?

4£®One can't be too careful£¬can one/can you?

5£®Learning how to repair motors takes a long time£¬doesn't it?

6£®There's something wrong£¬isn't there?

7£®I told them not everybody could do it£¬didn't I?