Both his parents look sad. Maybe they ________ what happened to him.

is surprising to us is that Tom can speak English fluently as though he were a native speakdr.

The girl __________ all her savings tothe people in the Southwest for the serious drought(旱灾).—What a donation and what a nice girl!

You must _____ the bananas before eating them.

下列古今意义相同的一组是（ ）