Northern India differs from the rest of the region because it has the Himalayas and a desert.
Answer:
<u>b) Before walked add the subject: My friends and I</u>
Explanation:
Adding the subject: My friends and I forms a complete sentence as read like this: My friends and I walked along Sixth Street, looked up, and saw a hot-air balloon.
The introductory paragraph.
Hi there,
A noun is a person, place or thing.
Hence. the noun in this sentence is "door" because it is a thing.
Hope this helps :)