13. Martha was for cures to her weight problem. She was easily fooled into spending a lot of money on useless treatments. (A) desperate (B) cautious (C) sensible (D) judgmental

15. The roots of rock and roll are actually very ; it is a style of music that developed from rhythm and blues, gospel, jazz, and American country music. (A) abstract (B) diverse (C) fragile (D) wishful II、文法挑錯：第 16-25 題，每題均有四個劃底線的選項，分別用(A)、(B)、 (C)、(D)加以標示，其中有一個是錯誤的，請選出錯誤的選項。