—How long is it since you picked up your badminton training?
—It was not until my finance became better last December I started the training.
A. when
B. before
C. where
D. that
网友回答
A. when
B. before
C. where
(答案→)D. that
解析： D 本题考查强调句。句意：“你开始羽毛球训练有多长时间了？”“直到去年12月份我的经济有所好转时我才开始训练。”答语是强调句，应用that引导。