Write S if the subject is missing from the sentence and V if the verb is. (Viết S nếu thiếu chủ ngữ trong câu và V nếu động từ.)

1. Vegetarians a lot of vegetables and fruit.

2. Causes red spots on the face.

3. On Saturday morning, my brother two hours of exercising at the sports center.

4. In the past, had a healthier diet.

5. At the moment, we our surroundings.

`1, V`

- Cấu trúc thì HTĐ: S + V(s/es)+O 

`2, S`

- Cấu trúc thì HTĐ: S + V(s/es)+O

`3, V`

- Cấu trúc thì HTĐ: S + V(s/es)+O

`4, S`

- Cấu trúc thì QKĐ: S+ V2/V -ed+ O 

`5, V`

- Cấu trúc thì HTTD ( DHNB: at the moment):

S + is/am/are + V-ing + O

`1, Verb`

`-` Cấu trúc: `S + V_{s``/``es} + O`

`2, Subject`

`-` Cấu trúc: `S + V_{s``/``es} + O`

`3, Verb`

`-` Cấu trúc: `S + V_{s``/``es} + O`

`4, Subject`

`-` Cấu trúc: `S + V_{2``/``ed} + O`

`5, Verb`

`-` Cấu trúc: `S + am``/``is``/``are + V_{ing} + O`