Sure! Let's fill in the blanks with the correct verb forms and explain why we use them in this context.

### 41. Sam **has not received** the parcel the last time I spoke to him.

- **Explanation**: We use the present perfect tense "has not received" here because it indicates an action that happened in the past but is relevant to the present. The fact that he has not received the parcel is still significant at the moment of speaking.

### 42. That man **has been standing** at the bus stop for the last half hour. Shall I tell him that the last bus has already gone?

- **Explanation**: The present perfect continuous tense "has been standing" is used in this sentence because we want to emphasize the duration of the action (standing) that started in the past and is still continuing up to the present moment. The second part of the sentence uses the present perfect "has already gone" to indicate that the last bus’s departure is relevant to the current situation.

So, the completed sentences are:

41. Sam **has not received** the parcel the last time I spoke to him.
42. That man **has been standing** at the bus stop for the last half hour. Shall I tell him that the last bus **has already gone**?