Giúp em cái bài dưới hình này với ạ :>>>>> Em đang cần gấp lắm luôn

sắp xếp

1. accident / can /happen/ can/ swimming/ he /fun

2. man/for /until/ could / stay/ recently/ not/ long/ underwater

3.the/ of /before/ equipment/ man/ special / breathing/ invention / couldn't/ under/ water/ freely/ swim

4.parents/ give/ the/ opportunity/ us/ to /should/our/ swim/ learn/ to

My parents take me to the circus once ...... a while