Capitalize the first letter of first word only, and proper nouns (names of people, places, or things).

For example:

I (first letter of first word) bought a Tesla (the car has a name, so we must capitalize it) for Owen (person has a name, so we must capitalize).

(first letter of first word) Let’s visit Shenzhen Talent Park.

Shenzhen Talent Park is the name of a park in Shenzhen. We must capitalize.

Surely, It is late

Surely, it is late.

Surely, we will be happy.

Surely, he is tall.

Remember to use an for words that start with a vowel:

There’s an automatic toy.

If you need to use ‘many’, add ‘s’ behind the nouns.

There are many automatic things.