问题
填空题
用所给单词的适当形式完成句子。
__1__ (ask) for information or help is a very common and necessary activity, __2__ (especial) when
we visit aforeign country. So __3__ (know) how to ask for information __4__ (polite) is important. It's
important __5__ ( use) correct language.
答案
1. Asking 2. especially 3. knowing 4. politely 5. to use
