There is one mistake in each of the following sentences. Find the mistake and write your answer A, B, C or D. (1 point) Do you know how many people are there in her family? A B C D It’s ten o’clock. My father unloads the vegetables. A B C D My class has a picnic two a year. A B C D My mother needs to buy a bottle of cooking oil and five hundred gram of beef. A B C D My brother has a lot of homewoks to do this evening. A B C D