In order to save time, I will __________ mention the events that happened last night to refresh your memories before the discussion.

Food safety is ________ important, so the government spares no efforts to prevent food pollution.

As the idea of low­carbon life is now ________ accepted, more and more people   travel by public transport.

Janet burst into tears when she failed because she needed to win so _______.

 He reminded me of what I should ______ have forgotten.