Решите пожалуйста Present Simple Present Progressive Present Perfect Past Simple Future Simple

1Hi (arrive) in Great Britain half a month ago
2Alice (go) to the swimming pool every Saturday.
3My sister already (to graduate) from the university
4Look at these children! They (to skate) very well
5 I (to think) Nellien (to leave) for Moscow tomorrow

1 He (arrived) in Great Britain half a month ago. 2 Alice (goes) to the swimming pool every Saturday. 3 My sister has already (graduated) from the university. 4 Look at these children! They (are skating) very well. 5 I (think) Nellien (will leave) for Moscow tomorrow.