Which sentence uses a verb that agrees with its subject? a. at the far end of the lobby were two professional musicians. b. beyond the city limits is many expensive houses. c. outside our kitchen window hovers two hummingbirds. d. before the thunder and rain come the lightning.

The correct answer is A.

B- the correct word is are not is because the sentence is talking about many city lights.
C- hover not hovers is correct because it is talking about more than one hummingbird.
D- comes not come is correct because it sentence is talking about it happening before.
I hope I helped.