It's high time that this wrong sentence (a. Was; B. is) checked.

这个错误的句子正是该检查了。

youdao

Her hands holding a paper, walking slowly in front of the teacher, and then pointed to paper on a topic, quietly say: "teacher, this problem is your sentence is wrong, I wrote the answer is wrong! ""

她手中拿着卷子，慢慢地走到了老师的面前，然后指着卷子上的一道题目，小声地说： 贴“老师，这道题您判错了，我写的答案是不对的！”

youdao