Use the Past Indefinite or the Past Perfect.
1) I (to translate) two pages yesterday.
2) By the end of the week they (to translate) the first part of the book.
3) When they (to enter) the theatre the play (to begin)
4) Though he (to learn) the language only for a year he (to show) good know leadge.
5) When you (to receive) a letter from her last?
6) When I (to phone) them they (not to be) ready yet.
7) We (to find) nobody in the house when we (to come) but we (to have) a feeling that someboty (to be) there before.
8) When John (tocome) home the family (to have) their tinner, so he (to go) to the kitchen and (to make) himself a cup of tea.
9) The lady (to open) the door only after I (to tell) her who I (to be) and what I (to want).
10) He (to live) in Paris for a long time and (to know) a lot about the city.