问题

________ has already been pointed out, only by correcting mistakes can you make progress.

A:It
B:As
C:That
D:What

正确答案是：

标签： already , been

同类题型

Hurry up! The filmfor ten minutes.

Do you know Peng Liyuan?—Of course, she is First Lady of China, famous singer.

The teachers _________ the office for a few minutes when we arrived.

It’s hard to believe that John easilyAdam in the last game.

Ma Dong didn’t write out the right answer, _____. [ ]