Ⅱ.选用第Ⅰ项中词组的适当形式填空
【小题1】He volunteered to act as a guide to __________.
【小题2】She was born __________ a rain storm.
【小题3】The exhibition is __________.
【小题4】It’s a breathtaking experience, especially ____________________, before the crowds.
【小题5】Many of them gather here to __________ at sunrise.
【小题6】It is __________________.
【小题7】You can __________________ in many places.