It's __________ comfort to know there is someone to keep __________ eye on the kids.
| A．a; the | B．/; an | C．a; an | D．/; the |
As soon as Charles had _____ a little from his surprise, his one thought was to get away.
| A．returned | B．absorbed | C．dissolved | D．recovered |
The two dogs started to fight, so we tried to _____ them.
| A．split | B．separate | C．tear | D．divide |
Carl wanted to play a joke on Bob but gave himself _____ by laughing.
| A．away | B．in | C．out | D．up |