21. There is no ________ evidence that people can control their dreams， at least in experimental situations in a lab.

A) rigid B) solid C) smooth D) harsh

22. Every culture has developed ________ for certain kinds of food and drink， and equally strong negative attitudes toward others.

A) preferences B) expectations C) fantasies D) fashions

23. It is reported that Uruguay understands and ________ China on human rights issues.

A) grants B) changes C) abandons D) backs

24. Only a few people have ________ to the full facts of the incident.

A) access B) resort C) contact D) path

25. His trousers ________ when he tried to jump over the fence.

A) cracked B) split C) broke D) burst

BADAB