William played cleverly. John couldn’t beat him.

Câu hỏi: Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
William played cleverly. John couldn't beat him.
A. William played cleverly, but John couldn't beat him.
B. William played cleverly; however, John couldn't beat him.
C. John couldn't beat William, so he played cleverly.
D. William played so cleverly that John couldn't beat him.