1. We got lost on the Metro—it was quite an _______(冒险).
2. I’m trying to _____(安排) my work so that I can have a couple of days off next week.
3. The sun was hot, and there were no trees to offer us _____(树阴).
4. Recent _____(发展) in medical science mean that this illness can now be cured.
5. He put on some soft music and turned the lights down in order to give the room a bit more________(气氛).
