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】55. The ________ stuck on the envelope says “By Air”.
(A)) diagram
(B)) label
(C)) signal
(D)) mark