there is no doubt that there is 可以省略么

题目

there is no doubt that there is 可以省略么
that 可以换成是其他像whether这种词么？

答案

1 在口语中,there is no doubt 的there is 经常被省略.还有：it is no wonder经常是no wonder.
2 连接词 that 不能换成其他连接词,否则可能会彻底改变原句的意思.