If electricity goes out..., If Instagram crashes..., If we use solar energy..., If my battery is 1%..., If people use the cellphone every day..., ... cities will be cleaner., If robots help in hospitals..., If engineers build eco-friendly buildings..., ... people will live longer., If buildings use solar panels..., If there is no internet..., ... students will not learn, If biotechnology helps agriculture..., If people use less plastic..., If schools stop using paper....

First conditional

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

)
恢復自動保存: ?