I. Tick (✓) the correct sentences. Correct the false ones.

1. ✓ In this book, there are grammar references which help explain the verb tenses.
2. ✓ Word games help you learn new words are a great tool for expanding your vocabulary.
3. ✗ An adverb is a word describes or modifies a verb or an adjective. (Sai vì "describes" phải là "describes")
4. ✗ I often spend 2-3 hours a day watching TV programs whose language is English. (Sai vì "whose language" phải là "whose languages")
5. ✗ The student whom Mr. Josh criticized last time has improved his English a lot. (Sai vì "whom" phải là "who")
6. ✓ A native speaker is someone who has spoken a language since they were a baby.
7. ✓ This app provides short films which show you how to use an English word correctly.
8. ✓ The students who love languages and world literature can join the school book club.
9. ✗ Annie is going to meet her pen friend with she often exchanges English emails. (Sai vì "with she" phải là "with whom")
10. ✓ The people we befriended in Australia are immigrants from Asian countries.

X. Combine the two sentences using defining relative clauses.

1. I met a woman at the conference whose husband is a well-known linguist.