Use right forms and complete the sentences.
1)Tell me when you (put on) your new dress?
2)If Jane (come),we (have) tea together.
3)I am not sure if I (buy) this fashionable fur coat.
4)Ask her if she (cook) for us.
5)When they (leave) for St Petersburg,I (feel) sad.

Можно больше объяснений

1) Tell me when you (have put on) your new dress. 2) If Jane (comes), we (will have) tea together. 3) I am not sure if I (should buy) this fashionable fur coat. 4) Ask her if she (will cook) for us. 5) When they (had leave) for St Petersburg, I (felt) sad.