I have to a piano lesson this evening .改错 答案是把have to改为have;把have to 改成 have to have行吗

问题描述:

I have to a piano lesson this evening .改错 答案是把have to改为have;把have to 改成 have to have行吗

要看有多少个空
两个改法都可以,意思不同
I have a piano lesson this evening我今晚有一堂钢琴课
I have to have a piano lesson this evening我今晚必须要上一堂钢琴课