Part III Vocabulary (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 answer that best completes the sentence. Then mark the corresponding letter on the Answer Sheet with a single line through the centre. 【題組】50. The continuous rain ________ the harvesting of the wheat crop by two weeks.
(A)) set back
(B)) set off
(C)) set out
(D)) set aside