environment/ help/ Trees/ the/ clean/ green/ to/ and/ keep/./

environment/ help/ Trees/ the/ clean/ green/ to/ and/ keep/./

2 bình luận về “environment/ help/ Trees/ the/ clean/ green/ to/ and/ keep/./”

  1. Trees help to keep the environment green and clean.
    -> Hiện tại đơn : 
    + Dạng tobe : (+) S + is/am/are + ….
    + Dạng V thường : (+) S + V(s/es)
    – help to V 

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