_______exciting experience it is to climb Mountain Tai!

It’s dangerous to walk across the street carelessly.—-You’re right. We can’t be _______ careful while crossing the street.

The time is not far away _____ modern communications will become widespread in China’s vast countryside[ ]

We were going out for a Christmas meal together ____ the accident happened

you have been to many countries, but nowhereelse _____ such a beautiful palace.