The reason ____he was late was ____he had taken a wrong bus.
| A．why; because | B．for; because | C．why; that | D．for; that |
17. --- Will someone go and get Mr. White?
--- He’s already been ____ .
| A．asked for | B．sent for | C．called for | D．looked for |
16. It is reported that they ____ arms and began to fight against the invaders (侵略者).
| A．took on | B．laid down | C．took up | D．Shoulder |
15. ____ ! There is a train coming.
| A．Look out | B．Look around | C．Look forward | D．Look on |
14. Believe it or not, it ____ to me that you are all mistaken about such data.
| A．appears | B．seem | C．seemed | D．Appeared |
13. Don’t worry! I'll _____ his safety.
| A．answer | B．answer for | C．reply to | D．See |