介词改错.​Guangdong Province is in the south of Hunan Province.21.Guangdong Province is in the south of Hunan Province.22.It was very nice to hear from you for such a long time.23.I know how you feel because I had a similar problem like you

介词改错.​Guangdong Province is in the south of Hunan Province.21.Guangdong Province is in the south of Hunan Province.22.It was very nice to hear from you for such a long time.23.I know how you feel because I had a similar problem like you
介词改错.​Guangdong Province is in the south of Hunan Province.
21.Guangdong Province is in the south of Hunan Province.
22.It was very nice to hear from you for such a long time.
23.I know how you feel because I had a similar problem like yours ten years ago.
24.Under the teacher's help,be has made great progress in his English study.
25.He goes to work by his bike every day.
26.The unemployed reached to as many as 250,000.
27.Mary's parents could hardly afford for the medical care.
28.The Chinese diet is a bit of different from the British diet.
29.She asked me if I had found out my new pen.
30.Thick trees and green grass could be seen in everywhere.

介词改错.​Guangdong Province is in the south of Hunan Province.21.Guangdong Province is in the south of Hunan Province.22.It was very nice to hear from you for such a long time.23.I know how you feel because I had a similar problem like you
21.in改为on
22.应该是把for改为since
23.like改为as
24.under改为with
25.这个……真不知道哪错了
26.去掉to
27.去掉for
28.去掉of
29.去掉out
30.去掉in