Complete the questions with tag endings b)You don t need any help... She doesn t speak German at all... Paul isn t good at Maths... Your parents aren t from Britain... Our match wasn t interesting today... Your teacher won t give you much homework for the weekend...

Все тэг-вопросы содержат отрицание, потому "хвостик" вопроса будет без отрицания, вспомогательный глагол или глагол-связка идут в тэге на первое место, а на второе ставим местоимение, соответствующее подлежащему:
You dont need any help, do you?
She doesnt speak German at all, does she?
Paul isnt good at Maths, is he?
Your parents arent from Britain, are they?
Our match wasnt interesting today, was it?
Your teacher wont give you much homework for the weekend, will she? - если учитель женщина
Your teacher wont give you much homework for the weekend, will he? - если учитель мужчина 
В первых двух предложениях на месте подлежащего стоит местоимение, в этом случае его просто повторяем