1.If you send this letter now ,she will recive it tomorrow

2.If I do this test, I will improve my English

3.If I  find your ring , I will give it back to you

4. Reggy will go shopping if she have time in the af ternoon

tất cả đều sử dung điều kiện loại 1

cấu trúc: if+S+V+N, S2+will+V...+
1, If you (send)....send........this letter now , she (receive).........will receive .........is tomorrow.
2,If I (do)......do.............this test, I (improve).....will improve.......my English.
3, If I (find).......find........ your ring, I (give).......will give......it back to you.
4, Peggy (go).......will go....... shopping is she (have) ...has....time in the afternoon.