When he heard the noise,Peter went out ___ ___ to have a look.横线部分除了用right away,还可以用?原来我想用at once 的,但是貌似at once是用在句尾的吧

问题描述:

When he heard the noise,Peter went out ___ ___ to have a look.横线部分除了用right away,还可以用?
原来我想用at once 的,但是貌似at once是用在句尾的吧