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I/
1. If we didn't have languages, we couldn't communicate.
2. Five students whose test results are excellent will be awarded a present.
3. If we didn't have senses , we couldn't learn languages.
4. If we didn’t have our sense of sight, we couldn’t read the written language.
5. They are looking for the girl and her dog that lost the way in the forest.
II/
1. The first gold of speaking English is to communicate.
2. Although speaking English fast makes you sound like a native speaker, it makes other people difficult to understand you.
3. Thinking in Enelish is the thing you can practice all the time because it is really important when speaking English/ you speak English.
4. If you forget a word, we can stop a sentence in the middle or use other words to describe it.
5. Self-confidence helps you speak better in every English conversation.