关于half的英语问题

问题描述:

关于half的英语问题
The number of registered participants in this year's marathon was half _______
Aof last year's
Bthat of last year's
Cof that of last year
A是错的~

B A 没有形式宾语 如果说was the half of last year就对了
B 正确,英国人就这么说
C of太多了