Complete the third conditional sentences

)The waitress hasn’t brought  our tea yet .The waitress brought our tea a few minutes ago. 2)The bell  has just rung. The bell rang some minutes ago.  3)He has already gone   to London . He  went to London  last week. 4)The boys  played football in the yard yesterday. The boys have played football in the yard many times. 5)Mother has read  a new novel by Aitmatov this month .Mother read a new novel by Aitmatov  last year. 6)Students have already cleaned  their classrooms. Students cleaned their classrooms last Saturday. 7)The teacher has just explained  a new rule. The teacher explained a new rule at the pervious lesson. 8)Ann has just done her home work. Ann  did  her home work on Friday. 9)They  have discussed theis problem many times . They  discussed this problem a few days ago 10)Granny  has just made a birthday cake. Granny  made a birthday cake yesterday. 11)The birds have already flown  to the South. The birds  flew  to the South at the end of August. 12)The train  has just come .The train  came an hour ago. 13)Who has  just your friend spoken to?Who did your friend speak to yesterday?14)We have already written the words of Lesson 7.  We wrote the words of Lesson 7at the last lesson

1. How old is Liz?
2. How old was Alice? — Alice was eleven.
3. Were they good friends? — Yes, they were.
4. Where did the girls live? — They lived in Paris.
5. Did they go to school? — Yes, they did.
6. Who played the piano? — Liz did.
7. Who went in for swimming? — Alice did.
8. Where did they usually go for a walk? — They usually went for a walk to the park.
9. What did Liz and Alice do in the park? — The girls played with a ball and ate ice cream there. Sometimes they watched the ducks and fed them.
10. What did they always do in the evening? — They always did their homework and read interesting books in the evening.
11. Where were the girls last month? — Liz left for London and Alice left for New York.