Question

【题目】I have singing lessons _________ a week, on Friday and Saturday.

A. once B. twice C. three times D. four times

Answer 1

【答案】B

【解析】句意：我在星期五和星期六每周上两次声乐课。A. once一次；B. twice二次；C. three times三次；D. four times四次。根据on Friday and Saturday可知上二次课；故选B。