7. Tam doesnt type as fast as she used to. 

$\Rightarrow$ Tam used to type faster than he does now.

Cấu trúc used to: S + used to + V

8. Please turn down the radio for me, said my father.

$\Rightarrow$ My father asked me to turn down the radio.

Cấu trúc: ask sb to do sth: yêu cầu ai làm gì

turn down $\Rightarrow$ to turn down

for me $\Rightarrow$ for him

$\textit{@ThanhVan2780}$

`7.` Tam used to type faster than now.

used to+Vinf: đã từng làm việc gì đó

So sánh hơn với trạng từ: S1+V+adv_er/more adv+than+S2

Dịch: Tam đã từng gõ phím nhanh hơn bây giờ.

`8.` My father asked me to turn down the radio for him.

ask+O+to Vinf: yêu cầu ai đó là việc gì

Dịch: Bố tôi yêu cầu tôi hạ âm lượng radio xuống cho ông ấy.