打开窗帘后，阳光立刻让整个房间明亮起来。

Opening the curtains instantly ___brightened the whole room with sunlight.

阳光明媚的天气总能让我心情变好。

The sunny weather always helps ___brighten my day.

新窗帘让整个房间看起来更明亮了。

The new curtains really ___brightened up the whole room.