根据所给汉语意思,用合适的单词填空。
My uncle is going _________(在国外) to study English next month.
—Where’s Mr. Green?
—He has gone to attend an ______ (国际的) meeting.
The most important thing for you is to _________ (放松) now.
We should try our best to protect our __________ ( 环境).
You can take a ________(直达的) flight to Chengdu. It’s much faster.