1.When are you having Jamie's surprise party?

I am not sure if 'you' is the complete subject or if it is 'Jamie's surprise party'.

2.John and Nicole washes the dishes.
A Sentence is correct
B. 'Washes' should be changed to'wash in order to make the subject and verb agree
C. Averb usually agrees with its subject in number
D. Sentence needs a helping verb

B

#1 - The verb is "are having" -- is the surprise party having anything?

#2 - Yes, B.

You is then the subject?

Right.

=)

To determine the correct answer, let's break down the sentence and identify the subject and verb:

Subject: John and Nicole
Verb: washes

The subject "John and Nicole" is plural because it refers to two individuals, so the correct verb form to agree with a plural subject is "wash" (not "washes"). Therefore, option B - "Washes should be changed to wash in order to make the subject and verb agree" is the correct answer.