Part III Vocabulary and Structure (20 minutes)
Directions: There are 30 incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the ONE that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the center. 【題組】48. In the Chinese household, grandparents and other relatives play ________ roles in raising children.
(A)) incapable
(B)) indispensable
(C)) insensible
(D)) infinite