5. a) Look at the sentences below and choose the correct option. a) We use could to talk about ability or possibility in the present/ past period of time. b) We use couldn't to talk about what isn't/wasn't possible in the present/past period of time. c) We use had to to talk about something that was/wasn't necessary or important in the past. d) We use didn't have to to talk about something that was/wasn't necessary or important in the past.

romashinigor    2   24.01.2022 20:18    4