Identify the correct word/answer for the following sentences: Trekking is often physically . A. invigorating B. relaxing C. exciting D. tiresome A diphthong is a vowel sound that involves a glide

Here are the solutions to the questions:

Part I: Language Focus

1. Trekking is often physically demanding.

   • The most appropriate word to describe trekking as an exercise from the given options is tiresome.
   • Answer: D. tiresome

2. A diphthong is a vowel sound that involves a glide from one vowel quality to another.

   • In the word "coin," the "oi" sound /ɔɪ/ is a diphthong.
   • Answer: C. coin

3. The sentence requires a possessive relative pronoun to show that the father belongs to the boy.

   • "Whose" is the correct possessive relative pronoun for