Question

They will wash the car, ________

Answer 1

Answer:

Won't they?

Explanation:

If you need a question tag in the end of a sentence, check if the statement is positive or negative. If the sentence is a positive sentence then you need to put a negative tag. If the sentence is a negative sentence then you need to put a positive tag. In the given sentence the sentence is positive so you put a negative tag - won't they

Positive sentence- Negative tag

Negative sentence - Positive tag

Hope it Helps!

May God Bless You!