Choose the right pronoun or verb form.
a) Gymnastics are/is a sport for people with strong legs.
b) This/These jeans are/is very comfortable.
c) Is/Are that/those glasses yours?d) Billiards is/are played all over the world.
e) Is/Are that/those the trousers you tore a hole in?
f) The scissors are/is on the table.