Read the extract and mark the
sentences t (true), f (false) or ds (doesn't
say). correct the false statements.
holmes wants sir henry to come out
before the fog reaches the house.
sir henry knows holmes' plan.
holmes thinks the fog will take
30 minutes to completely surround
them.
holmes suggests moving to lower
ground.
5 watson has seen the hound before.
sir henry is so afraid of the hound
that he can't move.​

1. Holmes wants Sir Henry to come out before the fog reaches the house.
- True: This information is stated in the extract. Holmes suggests to Sir Henry that they should leave the house before the fog surrounds them completely.

2. Sir Henry knows Holmes' plan.
- False: This information is not mentioned in the extract. There is no indication that Sir Henry is aware of Holmes' plan or has any knowledge regarding it.

3. Holmes thinks the fog will take 30 minutes to completely surround them.
- Doesn't say: The extract does not provide any information about the time it would take for the fog to completely surround them. Therefore, we cannot determine if Holmes thinks it would take 30 minutes or any other specific duration.

4. Holmes suggests moving to lower ground.
- True: This information is mentioned in the extract. Holmes suggests that they should change their location to a lower ground area.

5. Watson has seen the hound before.
- Doesn't say: The extract does not mention whether Watson has seen the hound before or not. Therefore, we cannot determine if this statement is true or false.

6. Sir Henry is so afraid of the hound that he can't move.
- False: This information is not mentioned in the extract. There is no indication that Sir Henry is paralyzed by fear and unable to move due to his fear of the hound.

To summarize the corrections:
- Statement 2 is false.
- Statement 3 cannot be determined.
- Statement 5 cannot be determined.
- All other statements (1, 4, 6) are true based on the information provided in the extract.