23. This time tomorrow I ___ in the swimming pool.
- A. am relaxing
- B. relax
- C. will be relaxing
- D. relaxed

**Correct Answer: C. will be relaxing**
**Explanation:** The future continuous tense "will be relaxing" is used to describe an action that will be in progress at a specific time in the future.

24. At the end of this month, we ___ here for ten years.
- A. will have been living
- B. are living
- C. live
- D. will be living

**Correct Answer: A. will have been living**
**Explanation:** The future perfect continuous tense "will have been living" is used to indicate an action that will have been in progress for a period of time by a specific point in the future.

25. Robert ___ for the company for very long before he was promoted.
- A. hasn't been working
- B. didn't work
- C. hadn't been working
- D. wasn't working

**Correct Answer: C. hadn't been working**
**Explanation:** The past perfect continuous tense "hadn't been working" is used to describe an action that was ongoing in the past before another past action occurred.

26. You can't believe a word he says. He ___.
- A. is always lying
- B. always lied
- C. was always lying
- D. will always lie

**Correct Answer: A. is always lying**
**Explanation:** The present continuous tense "is always lying" is used to describe a habitual action that is annoying or undesirable.

27. At this moment tomorrow night I ___ on a ship.
- A. sleep
- B. shall sleep
- C. shall be slept
- D. shall be sleeping

**Correct Answer: D. shall be sleeping**
**Explanation:** The future continuous tense "shall be sleeping" is used to describe an action that will be in progress at a specific time in the future.

28. By the time I return to my country, I ___ away from home for more than three years.
- A. will have been
- B. will be
- C. have been
- D. was

**Correct Answer: A. will have been**
**Explanation:** The future perfect tense "will have been" is used to indicate an action that will be completed by a specific point in the future.

29. After I ___ lunch for two hours, I noticed my bag was gone.
- A. had
- B. had had
- C. has had
- D. have had

**Correct Answer: B. had had**
**Explanation:** The past perfect tense "had had" is used to describe an action that was completed before another action in the past.

30. I have been waiting for you ___.
- A. since early morning
- B. since 9 a.m.
- C. for two hours
- D. All are correct

**Correct Answer: D. All are correct**
**Explanation:** All the options "since early morning," "since 9 a.m.," and "for two hours" correctly describe the duration of the action "have been waiting."