Đề bài 2 có sai không bạn?
Bạn ơi, mk nhầm AD^2=HD.BD
1. within / last / 100 years / deserts / been / growing / at / frightening / speed /.
2. people / living / near / the / edge / Gobi Desert / will / leave / homes / if / sandstorms / are / not / stopped / .
3. local / man / said / mudslide / was / caused / by / ground / which / has / been / made / unstable / by / heavy rainfall /.
4. where / you / when / the/ earthquake/ began / yesterday / ?
5. that / was / terrible / earthquake / but / luckily / we / are / survived /.