1):He went to the zoo with his friends last week.现在完成时：He has been to the zoo with his friends this week.一般将来时：He is going to the zoo with his friends next week.（2）：They spent their summer holiday in Tibet last year.现在完成时：They have spent their summer holiday in Tibet this year.
一般将来时：They are going to spend their summer holiday in Tibet next year.（
3）：What did you do yesterday?现在完成时：What have you done today一般将来时：What are you going to do tomorrow（4）：I planted a lot of trees with my friends last March.现在完成时：I have planted a lot of trees with my friends this March.
一般将来时：I am going to plant a lot of trees with my friends next March.
（5）：He didn‘t dream a good dream yesterday night.现在完成时：He hasn't dreamt a good dream yet this night.
一般将来时：He is going to dream a good dream yesterday night.
所有be going to 可用will代替