I'll fail my test. You'd better give me my book, otherwise I'll fail my test.

你最好把我的书还给我，否则我的测试会通不过的。

youdao

I'll fail my test. You'd better give me my book, otherwise I'll fail my test.

你最好把我的书还给我，否则我的测试会通不过的。

youdao