改错 I am very pleased to say that all of us greatly improved our spoken English so far

题目

改错 I am very pleased to say that all of us greatly improved our spoken English so far
-------- Thank you!

答案

后面时态用错了,他应该表达到现在为止,已经提高了我们的口语,应该用现在完成时,改为have greatly improved,我是用手机发的,体谅下