Answer: The subject and verb do not agree.
The subject and verb in a sentence must agree with one another in number i.e. singular or plural. It means that if the subject is singular then the verb must also be singular. If the subject is plural then the verb must also be plural.
The given sentence is in the present tense so the noun and verb must form singular/plural in opposite ways: by adding 's' to the nouns and removing 's' from the verb to form singular.
The correct sentence would be: Brad and Alicia say they are available to babysit on Friday night.
Gatsby is stretching his arms toward the green light at the end of Daisy's dock. For Gatsby, this light represents Daisy, his lost love; in the wider context of the book and its arguments about the American Dream, the green light can also be seen as symbolizing money, success, and the past.
Flabbergast means that you are shocked for example "I am flabbergasted". It relates to weary and hesitant because those two words relate to being shocked.