Don’t be nervous. Just speak _______ and pretend the microphone isn’t here.

When talking about the Mid-autumn Festival, we ______ think of mooncakes and family reunion.

--This store has such high prices.--- I agree. Never again ___ here.

He devoted himself _______ to his research and got many achievements.

As the idea of low-carbon life is now _____ accepted, more and more people travel by public transport.