极其简单但是我有点问题...
1.what ______ just now?
a girl cried because she couldn't find her mother.
答案是happened 我写的是happens
请问它后面不是有just now 为什么还要用过去时,答句也是过去时?
明明是现在发生的事啊
2.有hardworking这个词吗?还是必须要加连字符变成hard—working呢?
还是两个都可以用?