题干
—When will the engineer go to Singapore?
—Oh，I don’t know when he ___Singapore．When he ____ Singapore，I will call you．
—Oh，I don’t know when he ___Singapore．When he ____ Singapore，I will call you．
A：leaves for；leaves for
B：will leave for；will leave for
C：will leave for；leaves for
D：leaves for；will leave for
答案(点此获取答案解析）
C
