Jumping out of_______________airplane at ten thousand feet is quite _______________ exciting experience.
| A．/; the | B．/; an | C．an; an | D．the; the |
Some birds fly_______________in winter and some stay in the north.
| A．south | B．the south | C．in the south | D．to south |
The book,_______________as a surprise for his sister was lost in the mail.
| A．intended | B．to be intended | C．Intending | D．being intended |
The country life he was used to ______greatly since 1992.
| A．change | B．has changed | C．changing | D．have changed |
Nancy enjoyed herself so much _________she visited her friends in Sydney last year.
| A．that | B．which | C．when | D．where |