Question

1. where have we seen him before?
2. technology has affected our map - reading skills.
3. ben hasnt taken that class.
4. how life easier have made smart homes?
5. my parents my new apartment havent seen.

Explanation:

Question 3

We need to form a correct question. The structure for present perfect tense question is "Where + have + subject + past participle + object + before?". So arranging the words: Where have we seen him before?

To form a correct sentence. The subject is "Technology", verb phrase "has affected", object "our map - reading skills". So the sentence is "Technology has affected our map - reading skills."

The words are for a negative present perfect sentence. The structure is "Subject + hasn't + past participle + object". So it's "Ben hasn't taken that class."

Answer:

Where have we seen him before?

Question 4