题干
16.By the end of last year, another new gymnasium _____ in Beijing.
A：would be completed
B：was being completed
C：had been completed
D：has been completed
答案(点此获取答案解析）
A
一根绳子，并在绳子上挂一盏灯，求灯与两端距离都大于2m的概率. （ ）
，它可能是 
。（
）