Помогите пожалуйста !!4. You (to make) decision about participating in this

Помогите пожалуйста !!
4. You (to make) decision about participating in this project? - Not yet.
5. She (to send) the report about the international conference?
6. Who (to write) this repot? - Olena ( to do) it yesterday. Actually she (to write) the dreft of it and then Olga (to make) the final version.
7. Yesterday I (not to have) time to look through your documents. But today I (to do) it. I can say it(not to be) good. It doesnt work in the version you (to give) me.
8. Why you (to do) it? You (to do) it by mistake? I cant believe you (to do) it on purpose.
9. She (to come) to the offece. (to switch) on the computer, (to upload) the document and (to see) that he (to be) right.
10. Its the first time she (to sign) him the documents for the international conference.