【强制性从句】
6. I insist that... 我坚持……
◆ 疯狂操练
I insist that you go with me.
（我坚持要你跟我一起去。）

◆ 疯狂实战
A: I insist that you let me pay for lunch.
B: Absolutely not! I invited you. It’s my treat!
A: 我坚持由我来买单。
B: 绝对不行！是我邀请你的，我请客！