Đáp án:

1. They sometimes go to Greece or Spain.

2. They never forget their passports.

3. They sometimes go to museums.

4. In August, it's usually very hot.

5. Nick and Jenny always swim in the sea.

6. In August, the beaches are often crowded.

7. Before the holidays, Nick and Jenny are always excited.

8. They never take Chip with them.

9. Chip usually stays with Tom or Amanda.

10. Unfortunately, he isn't always a good dog.

Lời giải chi tiết:
* Cấu trúc chung: .... + S ( + to be ) + usually (s) + .....

                                                            often (s)

                                                            always (s)

                                                            sometime (s)

                                                            never (s)

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