Làm giúp em câu này với ạ 

`color{pink}{Harry}`

`1`. This is my friend who bought me a burger.

`***` Mệnh đề `1`, when/where/what/... + mệnh đề `2`

`=` Câu Mệnh đề quan hệ

`2`. This is the room where she slept lastnight

`@` Where: Ở đâu`?`

`3`. They played tennis in the sports centre last week.

`4`. Paul ran across the finishing line first.

`5`. Last summer, my family went to Cua Lo beach.

`6`. What did Betty do yesterday?

`7.` She gave me some flowers that she planted in her garden.

`8`. The boys and the girls waited for the race to begin. 

`9`. My grandpa bought me a new comic 2 days ago.

`10`. The museum where we went last week was very old.

`11.` They stood next to the window and watched the animals.

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Công thức thì quá khứ đơn

(`+`) S + V-ed + ...

(`−`) S + didn't + V-inf

( `?` ) Did + S + V-inf .... ?

`***` Dấu hiệu nhận biết:

`+` Yesterday, ago, last,...

`+` Khoảng thời gian trong quá khứ

` Answer : `

` 1. ` ` to ` This is my friend who bought me a burger

` - ` Mệnh đề quan hệ ( Who ) : ...N (person) + Who + V-inf + Object

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` 2. ` ` to ` This is the room where she slept last night.

` - ` Mệnh đề quan hệ ( Where ) : … N (place) ` + ` where ` + ` Subject ` + ` V-inf

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` - ` DHNB : last night

` 3. ` ` to ` They played tennis in the sports centre last week

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` - ` DHNB : last week

` 4. ` ` to ` Paul ran across the finishing line first.

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` 5. ` ` to ` Last summer my family went to the Cua Lo beach

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` - ` DHNB : Last summer

` 6. ` ` to ` What did Betty do yesterday ?

` - ` Thì QKĐ với V thường :  Did  ` + `  S  ` + `  V-inf  ` + ... ? `

` - ` DHNB : Yesterday

` 7. ` ` to ` She gave me some flowers that she planted in her garden.

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` 8. ` ` to `  The boys and the girls waited for the race to begin. 

` - ` Sb do st for... to st

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` 9. ` ` to ` My grandpa bought me a new comic 2 days ago

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` - ` DHNB : 2 days ago

` - ` time/days + ago

` 10. ` The museum where we went last week was very old.

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` - ` DHNB : last week

` - ` Mệnh đề quan hệ ( Where ) : … N (place) ` + ` where ` + ` Subject ` + ` V-inf

` 11. ` They stood next to the window and watched the animals.

` - ` Thì QKĐ với V thường : S ` + ` V2/V-ed ` + ` Object

` #Pyyx# `