1 . 正在建设的新体育场将是目前这个体育场的三倍大。(一句多译)
a. The new stadium being built will be ________ the present one.
b. The new stadium being built will be ________ the present one.
c. The new stadium being built will be ________ the present one.

2 . He ____ _____ ______ _____ when he made the investment. 当时他投资时是冒了大风险的。