`1.` Unless she ate healthily, she would be ill.

`->` ĐK loại `2:`

If/Unless + S + Ved/V2, S + would/could + V-bare

`-` Unless `=` If not: trừ khi...nếu không...

`Q2:`

`1.` Lan told Peter that she was leaving London the next day.

`->` Câu tường thuật `-` kể:
S + told sb + (that) + S + V (lùi thì)

`-` Lùi thì: HTTD `->` QKTD

`-` ĐTCTG: tomorrow `->` the next day

`2.` English vocabulary should be learnt through reading.

`->` Bị động `-` ĐTKT:
S + ĐTKT + be + P2 + (by O)

`3.` We have never seen this film before.

`->` This is the first time + S + have/has + P2 

`=` S + have/has + never + P2 + before

`Q2:`

`1.` Eating too much fast food can lead to health problems.

`-` result in `=` lead to: dẫn đến

`2.` You must apply yourself to work more.

`-` concentrate on sth `=` apply oneself to sth: tập trung vào cái gì

`3.` Due to the heavy rain, the road in front of my house was flooded.

`->` Due to + Noun/Noun Phr/V-ing, clause: bởi vì...nên...