People have strange ideas about food. In the 18th century, Americans never ate tomatoes. They grew them in their gardens because tomato plants are so pretty. But they thought the vegetable was poisonous(有毒的). They called tomatoes "poison apples."
President Thomas Jefferson, however, knew that tomatoes were good to eat. He was a learned man. He had been to Paris, where he learned to love the taste of tomatoes. He grew many kinds of tomatoes in his garden. The President taught his cook a way, for a cream of tomato soup . This beautiful pink soup was served at the President's next dinner party. The guests thought the soup tasted really good. They never thought their President would sever his dinner guests poison apples. Jefferson never spoke to his guests about the fact.
Which of the following is true?

A．Americans never ate tomatoes after the 17th century.

B．Even now Americans don't eat tomatoes.

C．It was not until after the 18th century that Americans began to grow tomatoes for food.

D．Americans didn't eat tomatoes before the 19th century.

Jefferson was a president of _______.

A．an African country	B．the United States
C．England	D．France

Jefferson learned that tomatoes were good to eat _______.

A．even when he was a little boy

B．because his parents told him so

C．from books

D．while he was in Paris