Each of the following sentences has one mistake

I.        Each of the following sentences has one mistake. Identify the mistake by writing A, B, C or D in the answer box.

1.    I am interesting in the rice – cooking contest you organized A  B         C         D

2.       Thanks for invite me to the rice –cooking contest of your school. A   B         C         D

3.    I don’t know where is he living now. A     B         C         D

4.    Jack is now more happy than he used to be. A     B         C         D

5.    I buy a new house if I have enough money. A      B         C         D

6.    Unluckily, we won the game although we practised a lot.

A             B                                 C           D

7.    Mary is traveling by bus and visit a lot of interesting places. A B         C         D

8.    A lot of my friends play tennis, but not much of them play badminton.

A                B             C           D