请判断哪一组全是开音节 ______.

__________, they couldn’t make her change her mind.

_________I went to the US,I visited many cities.

s lecture ,I can only give you apurely ______view of how we can live life to the full and make some suggestionsabout the future .

The woman said nothing but to ______ a weak smile on hearing the news that her beloved ex-husband would marry a young lady.