Ответ:

1. displayed

2. forget

3. donate

4. lose

5. received

Объяснение:

1. displayed - (were displayed - passive form)

2. forget - ( must + infinitive without "to")

3. donate ( infinitive )

4. lose (conditional clause)

(will + 1 form)

5. received (2 form - Past Simple)

Объяснение: