will与be going to的区别 — 英语词汇题
题目
用 will 或 be going to 填空（注意两词的用法区别）：1. Look at the dark clouds! It ______ rain soon. 2. I'm sorry I can't finish my homework now, but I promise I ______ do it tonight. 3. Lucy has already decided to study medicine, so she ______ be a doctor in the future.