Supply the correct forms of the words to complete the sentences

I.Supply the correct forms of the words to complete the sentences.
1. They seem to be ........... . We dislike them .(friend).
2.Ao Dai is the .............   dress of Vietnamese women.(tradition)
3. Scientists have recently filled the periodic table's seventh row with four ....... chemical elements.(heave)
giúp mình qua cơn hoạn nan.