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】42. The article suggests that when a person ________ under unusual stress he should be especially careful to have a well-balanced diet.
(A)) is
(B)) were
(C)) be
(D)) was