`Answer:`

`1,` Nick's resignation came as a surprise to everybody

`-` come as a surprise: không có gì ngạc nhiên

`2,` Mira tried not to take sides between her two colleagues

`-` stay out of sth `=` not to take sides sth: không dính dáng, không tham gia vào chuyện gì

`3,` The carnival's success is under threat due to the lack of support

`-` be under threat of sth: sự đe dọa, mối đe dọa

`-` lack of sth: thiếu hụt cái gì

`4,` The manager stated that his decision was not open to further discussion

`-` be open to further: tranh luận, đàm phán về một vấn đề

`5,` I just caught sight of Emma as she walked past the restaurant

`-` catch sight of sb/sth: bắt gặp ai/cái gì

`#TD`