In Canada, there is a day for dogs. It comes on the second Sunday of October.

1.In________, there is a day for dogs.

A China

B Canada

C America

D Mexico

解析：选B。B细节理解题。根据第一段第一句“In Canada, there is a day for dogs.”可知，加拿大有一个加拿大狗节。故选B。

2.Dog’s Day comes on the ________.

A second Sunday of October

B third Sunday of March

C first Saturday of May

D second Saturday of May

解析：选A。A细节理解题。根据第一段第二句“It comes on the second Sunday of October.”可知，这一天是在十月的第二个星期日。故选A。

3.Dogs can ________.

A pull a coach(四轮马车) for people

B carry things for people

C dress themselves up

D cook a big dinner

解析：选B。B细节理解题。根据第二段第二句“They can pull a sled and carry things for people.”可知，狗狗是加拿大人非常得力的帮手，它们可以拉雪橇、运东西。故选B。

4.On Dog’s Day, ________.

A dogs have to work as usual

B there is a “Sports Contest” for dogs

C there is a big party for dogs

D people buy a dog

解析：选B。B细节理解题。根据第二段最后一句“Sometimes there is a ‘Sports Contest’ for them.”可知，有时还会为狗狗举办一场“体育比赛”。故选B。