Tom and his cousin took a boat trip. When they got on the boat, every passenger(乘客)should answer the keeper a question. If the passenger answered “yes”, he or she got one gift; if the passenger answered “no”, he or she got two gifts. Tom and his cousin saw all about this. Now it was their turn. The keeper came up to them and asked, “Are you a good sailor?” Tom wanted to get two gifts, so he answered “no” loudly, at the same time he said, “I have never been a sailor, how could I be a good sailor?” The keeper gave him two gifts. His cousin gave the same answer, so he got two gifts, too.
The boat started off. The passengers began to open their gifts. Tom and his cousin did the same. They found that one of the two gifts was a small bottle of drinking water, the other was a seasick tablet (晕船药). Tom had a look at a “yes”-passenger’s gift. His was a nice chocolate. Tom shouted at the keeper, “We are never seasick. Why do you give us seasick tablets?”
Tom and his cousin ________.

A．went to eat chocolates

B．went on a trip by boat

C．worked for the keeper

D．needed a bottle of drinking water

Why did Tom and his cousin answer “no”?

A．Because they felt sick on the boat.

B．Because they were good sailors.

C．Because they both wanted to get two gifts.

D．Because they wanted to have chocolates.

The underlined(下划线)part “a good sailor” means ________.

A．晕船

B．不晕船

C．好销售员

D．好水手

Which of the following statements is true?

A．The keeper cheated (欺骗)Tom and his cousin.

B．Tom and his cousin didn’t want the seasick tablets.

C．All the other passengers answered “yes”.

D．The keeper didn’t want to give Tom and his cousin chocolates.