Open the brackets.1) ...they(to translate) the whole afternoon yesterday​? - No they ... . 2) ...you (to be) to the supermarket today? - No, I ... . My mother (not to tell) me what to buy yet. 3) The manager (not to speak) ti a client now. 4) Alan (to miss) the lessons yesterday and (not to know) the homework. 5) I think he (to come) tomorrow.​

Курсивом обозначаю маркер времени и/или аспекта.

1. Were they translating the whole afternoon yesterday​? — No, they were not.
2. Have you been to the supermarket today? — No, I have not. My mother has not told me what to buy yet.
3. The manager is not speaking to a client now.
4. Alan missed the lessons yesterday and does not know the homework. (вероятнее всего, дз он не знает сейчас, но 'to know' является статальным глаголом, то есть нельзя сказать 'is not knowing')

1. I think he will come tomorrow.​

1)Were they translating .....? - No , they were not . ( Past Continious ) .2)Have you been ....?(Present Perfect Continious ) - No , I have not . My mother has not told ..... ( Present Perfect Simple ) .3)is not speaking - Present Continious. 4)missed ( Past Simple ) and doesn't know ( Present Simple ) .5)will come - Future Simple .