1.Today is ____________.

A Friday

B Saturday

C Sunday

D Monday

解析：选A。A细节理解题。根据“Tomorrow is Saturday.”可知，今天周五。故选A。

2.Where will Sarah’s mother go?

A To the park.

B To the supermarket.

C To the zoo.

D To the bookstore.

解析：选B。B细节理解题。根据“My mother is going to buy something for next week.”可知，她妈妈要去买东西，因此她妈妈会去超市。故选B。

3.How will Sarah go to the bookstore?

A By subway.

B By car.

C By bus.

D By bike.

解析：选C。C细节理解题。根据“I’m going to the bookstore by bus.”可知，她坐公交去书店。故选C。

4.Tomorrow evening Sarah is going to visit her ____________.

A aunt

B grandparents

C uncle

D teacher

解析：选B。B细节理解题。根据“Tomorrow evening we are going to visit my grandparents and have a big dinner.”可知，明天晚上她会去拜访她的祖父母。故选B。