1. Vickey was absent from class yesterday morning because she was ill.

- Clause 1 + because + Clause 2: bởi vì

- DHNB: yesterday morning 

-> Thì QKĐ: (+) S + was/were + N/Adj

- Vì "Vickey" là S số ít -> Dùng "was"

- be absent from sth: vắng mặt ở nơi nào đó

2. You should take a rest and eat healthy foods.

- S + should + V(bare): Ai đó nên làm gì đó

- take a rest (phr v): nghỉ ngơi

- Trước và sau "and" là 2 từ cùng hình thức

- Adj + N

`1` Vicky was absent from class yesterday morning because she was ill.

`-` QKĐ: S + was/were

`-` absent from: vắng mặt

`2` You should take a rest and eat healthy food.

`-` S + should + V: nên làm gì

`-` take a rest: nghỉ ngơi