Mark the letter A, B, C, or D on your answer sheet to indicate the one that best completes each sentence.
Having been selected to represent the Association of American Engineers at the International Convention,________.
A. the members congratulated him
B. the members applauded him
C. a speech had to be given by him
D. he gave a short acceptance speech
Đáp án là D. Hai mệnh đề trong câu phải đồng chủ ngữ khi có một mệnh đề bị giản lược chủ ngữ.