$\text{2}$ What did you watch on TV last night ? 

→ Thì Quá Khứ Đơn - last night

→ Did + S + V-inf + O ? 

$\text{3}$ Sometimes he watches TV and sometimes he reads book . 

→ Thì Hiện Tại Đơn - sometimes

→ S + V(s/es) + O 

$\text{4}$ My mother loves Korean film but I do not . 

→ Clause 1 + but + clause 2 : diễn tả sự đối lập 

$\text{5}$ Although the show was interesting, I couldn't watch it until the end. 

→ Although + clause 1 , clause 2 : sự đối lập 

`2.` What did you watch on TV last night? 

`-` last night là DHNB thì QKĐ

`-` Cấu trúc nghi vấn: Did + S + V1..?

`3.` Sometimes he watches TV and sometimes he reads book. 

`-` sometimes là DHNB thì HTĐ

`-` Cấu trúc: S + V(s/es) + O ..

`-` V and V

`4.` My mother loves Korean film but I don't

`-` but là liên từ kết hợp

`-` But dùng để diễn tả sự đối lập, ngược nghĩa

`5.` Although the show was interesting, I cannot watch it until the end

`-` Although: mặc dù

`-` Cấu trúc: Although + S + V, S + V