If ______(training),most people can enjoy this simple sport
问题描述：
If ______(training),most people can enjoy this simple sport
前面if后有一空,是training的适当形式,还有这道题,
——Is Mr.Read in the office?
——No,he ____(sent)to Australia on business since last Tuesday.
答
1. trained 如果人们被培训的话,是一个省略形式
2.has been sentsince last Tuesday是个持续状态，has been sent不是持续动作，可以吗？是现在完成时的被动。