Answer and Explanation:
Using the directions given, let's make the necessary changes or identifications in the sentences:
1. They gave the chief a brown paper bag. --> (Passive Voice) A brown paper bag was given to the chief.
In the passive voice, what was the object of the verb in the original sentence becomes the subject in the new sentence. The purpose is to emphasize the receiver of the action instead of the performer.
2. I saw him smiling as the lorries drove away.
A phrasal verb is an idiomatic phrase formed by a verb and a preposition, a verb and an adverb, or a combination of both. In sentence two, the phrasal verb "drive away" is in its past form, "drove away".
3. Then after some time, he started university in Lagos, didn't he?
A question tag is a short question added to the ending of the sentence with the purpose of confirming the information previously state. It should be in the same tense and have the same subject as the sentence.
4. He started speaking to himself, we all thought he had gone mad.
There are not underlined verbs in the sentence, so let's identify each verb and its tense just to make sure.
- started - simple past
- thought - simple past
- had gone - past perfect
5. He said to us, "These drums are poisonous and very dangerous". --> (Reported Speech) He told us the drums were poisonous and very dangerous.
When we report what someone said, we usually change the verb tense to the past form of the one used in the original sentence. In this case, "are" is simple present. It was changed to "were", simple past, in the reported sentence.