=>

1. is looking

-> be careful (HTTD, S is/am/are Ving)

2. started

-> last Sunday (QKĐ, S V2/ed)

3. has learnt

-> for three years (HTHT, S have/has V3/ed)

4. have just made

-> thì HTHT (S have/has just V3/ed)

5. Has she fed

-> yet (HTHT, Have/Has S V3/ed)

6. was 

-> in 2001 (QKĐ, S V2/ed)

7. When does your father play tennis?/How often does your father play tennis?

-> when: khi nào

-> how often: hỏi mức độ thường xuyên

8. What subject does your class have on Monday?

-> what subject: môn gì, môn học gì

Answer

$1.$ is looking

`-` Thì HTTD `( + )` S + is / am / are + Ving

`->` DHNB `:` Be careful

`-` The teacher là chủ ngữ số ít `->` Chia is

$2.$ started

`-` Thì QKĐ `( + )` S + V2 / V-ed

`->` DHNB `:` last Sunday

$3.$ has learnt

`-` Thì HTHT `( + )` S + have / has + V3 / PII

`->` DHNB `:` for three years - for + khoảng thời gian

`-` The boy là chủ ngữ số ít `->` Chia has

$4.$ have just made

`->` DHNB - HTHT `:` just

`-` I là chủ ngữ số nhiều `->` Chia have

$5.$ Has she fed

`-` Thì HTHT `(  ?  )` Have / Has + S + V3 / PII ?

`->` DHNB `:` yet

`-` She là chủ ngữ số ít `->` Chia has

$6.$ was

`-` Thì QKĐ - Động từ tobe `( + )` S + was / were

`->` DHNB `:` in 2001

`-` It là chủ ngữ số ít `->` Chia was

$7.$ How often does your father play tennis ?

`-` Thì HTĐ `(  ?  )` (Wh-Question) + does / do + S + V ?

`-` Your father là chủ ngữ số ít `->` Chia does

`-` How often dùng để hỏi về tần suất

$8.$ What subject does your class have on Monday?

`->` DHNB - HTĐ `:` on Monday

`-` What subject dùng để hỏi về môn học