1：D A wandering cow was captured by the police

2：D It was sent to the animal control department

3：B lt is going to be expanded

4：C Some ancient wall paintings from Australia

5：A Pick up trash

6：A They are especially intelligent

7：B Children may be tempted to drop litter

8：C It will cover different areas of science.

9：C It will be more entertaining.

10：A People interested in science.

11：B Provide financial support.

12：D Dissatisfied

13：A He is too concerned with being perfect

14：C Miserable

15：B Compare his present with his past only

16：C They are more likely to become engineers

17：D Respond more positively to boys comments

18：A Offer personalized teaching materials

19：C lt does not rain as much as people think

20：B The rain is usually very light

21：D It has mild weather both in summer and in winter

22：D It comes from straining one’s muscles in a unusual way

23：A Blood flow and body heat increse in the affected area

24：B About two days

25：C Have a hot shower