howaboutwegototheconcertafterdinner?不是说介词后的宾语从句不用if引导吗?原题1.---howaboutwegototheconcertafterdinner?---I'dliketo,butIhavetohelpmydaughterwithhermaths.A.whenB.ifC.whetherD.that解

Question

how about _we go to the concert after dinner?
不是说介词后的宾语从句不用if引导吗?
原题1.---how about ____we go to the concert after dinner?
---I'd like to ,but I have to help my daughter with her maths.
A.when B.if C.whether D.that
解析说if 此处用在介词在后面引导宾语从句，当“假如”讲，how about if we go ...也可用来提建议，相当于how about our going ...我有点不解，

Answer 1

这里的空应填that,that 来引导一个宾语从句.此处不能用if,意思不对.