1, You (ever, go) to the zoo? Yes, my father often (take) me to the zoo. When I was a child
2, The train (already, leave)
3, My brother (write) several plays so far. He (just/finish) his second tragedy
4, He (teach ) at Harvard university in 1985
5, What you (do) now? I (watch) TV
6, Mum I promice I (keep) my room clean
___________
3) has written / has just finished
4/ tough
5/ what are you doing now ? am watching
6/ kept

1, Have  you ever gone to the zoo? Yes, my father often  took me to the zoo. When I was a child.
2, The train has already left.
3, My brother has written several plays so far. He has just finished his second tragedy.
4, He taught at Harvard university in 1985.
5, What are you  doing now? I am watching TV.
6, Mum I promice I will keep my room clean.

1, You (ever, go) to the zoo?--> have you ever gone to the zoo
Yes, my father often (take) me to the zoo. When I was a child
=> yes, my father often takes me to the zoo when i was a child
2, The train (already, leave) => the train has already left
3, My brother (write) several plays so far. He (just/finish) his second tragedy
=> my brother wrote   several plays so far. he has just finished his second tragedy
4, He (teach ) at Harvard university in 1985
=> he touch at havard university in 1985
5, What you (do) now? I (watch) TV
=> what are you doing now? i am watching TV

1, Have You ever gone took
2, has already left
3, has written several plays so far. He (just/finish)has just finished 
4, taught 
5, are you doing now? I (watch) am watching TV
6, will keep