She devoted as much time as she could _______ others.

You can’t have this ball back you promise not to kick it at my dog again.

Silk_________ one of the primary goods traded along the Silk Road by about 100 BC.

Tina stayed in Tianjin for a week.She________ spent some days in Beijing.

Alex Honnold is planning to climb the mountain， without even using a rope.–What I’ve never heard of ______ idea before.