3. bị khuất

4. Where will Nguyen be next month?

DHNB: next month (TLD)

Wh + will + S+ V1? 

5. I was at my friend Nam's house yesterday.

DHNB: yesterday (QKD)

S số ít, I, he, she, it + was 

`color{orange}{~STMIN~}`

4. Where will Nguyen  next month

5. I was my friend in Nam's house yesterday

Thì QKĐ :

- Động từ thường :

(+) S + Ved/V2 + O

(- ) S + didn't + Vinf + O

(? ) Did + S + Vinf + O ?

- Tobe :

(+) S + was/were + O

(-) S + was/were + not + O

(? ) Was/were + S + O

TTLD:

(+) S + will + V + O

(-) S + will not / won't + V + O

(?) Will + S + V+ O

- DHNB: Next + ngày, tháng, năm trong tương lai; In the future; ....