Couldn't?come?up?with?a?proper?a_初級(jí)英語口語

He could not come up with a proper answer.

他想不出一個(gè)合適的回答。
come up with指趕上，但這里指（針對(duì)某問題）想出。

Mum always comes up with great ways to celebrate our birthdays.
媽媽總是想出好的辦法來為我們慶祝生日。