1.1. When does Lulu fly to the tree?

A In the afternoon.

B In the morning.

C In the evening.

D At noon.

解析：选B。B 细节理解题。根据第一段第二句“One sunny morning, she flies to a tree”（一个晴朗的早上，她飞到了一棵树上），可知露露飞到树上的时间是早上。故选B。

2.2. Why does the baby dog cry?

A It can’t find its mom.

B It is hungry.

C It hurts its leg.

D It loses its toy.

解析：选A。A 细节理解题。根据第二段中小狗的回答“I can’t find my mom”（我找不到妈妈了），可知小狗哭的原因是找不到妈妈。故选A。

3.3. Where does Lulu see the big dog?

A Under the tree.

B In the sky.

C Near the lake.

D By the river.

解析：选C。C 细节理解题。根据第三段第三句“Soon, she sees a big dog near the lake”（很快，露露在湖边看到了一只大狗），可知露露看到大狗的地点是湖边。故选C。

4.4. Does the baby dog cry at last?

A Yes, it does.

B No, it doesn’t.

C Yes, they do.

D No, they don’t.

解析：选B。B 细节理解题。根据第四段第二句“The baby dog stops crying”（小狗停止了哭泣），可知最后小狗没有在哭。故选B。