Question

Which sentence has a single subject and a single verb?

A-They speak.
B-The bird flies.
C-The pens write.

Answer 1

All three sentences have a single subject and a single verb. However, if you're looking for a sentence that is most straightforward in its structure, it would be either A or B, as both clearly contain a singular subject and verb.

- A: **They** (subject) **speak** (verb).
- B: **The bird** (subject) **flies** (verb).
- C: **The pens** (subject) **write** (verb).

If you meant which has a singular subject and a singular verb form, then B is the best choice: "The bird flies."