Question

Lets play tennis(question tag)

Answer 1

Answer:

Let's play tennis, shall we?

It is helpful for you.

Answer 2

Answer:  Let's play Tennis , shall we ?

Explanation: So ...... learning Question tags is very simple and easy all we should know is that :

1.If a sentence is positive the question tag would be negative . For example , if the sentence is ...

'Those puppies are cute . '

the above sentence is positive so the question tag would be a negative one 'Those puppies are cute , aren't they? '  

2. So automatically if the q tag for positive sentence is negative the q tag for negative sentence would be positive ...'those puppies are not cute'

'Those puppies are not cute , are they? '

I hope you understood :)