选C twice as much time
as much as 的用法是 "倍数+as much+名词+as"
这句话在不影响句意的情况下,省略了后面的as和一些内容
根据后面的话,前一句完整时是
You may spend twice as much time (as riding a bicycle ) (on) walking there.
选C twice as much time
as much as 的用法是 "倍数+as much+名词+as"
这句话在不影响句意的情况下,省略了后面的as和一些内容
根据后面的话,前一句完整时是
You may spend twice as much time (as riding a bicycle ) (on) walking there.