Directions: In each of the following group of words, there is one underlined part with a different sound. You are required to pick it out.

(单选题)28.（ ） (单选题)27.（ ） (单选题)26.（ ） (单选题)25.（ ） (单选题)24. （ ） (单选题)23.（ ） (单选题)22.（ ） (单选题)21.（ ） (单选题)—My son lost his job yesterday.—______. Look, maybe I can he (单选题)______ no reason to worry.