题目

1.We began to learn English three years ago.2.I have been to U.S.A. before.
3.He hasn't come to school because he was ill. 4.He has learned English for 5 years. 1.写出同义句.2.改为否定句.3.就划线部分提问.4.就划线部分提问

提问时间：2020-07-26

答案

1 We have learned English since three years ago .
/
We have learned English for three years.
2 I haven't been to U.S.A before.
3 Why hasn't he come to school
4 How long has he learned English .
加油!不明白再问!