Viết lại câu thì Hiện tại hoàn thành sao cho nghĩa ko đổi

10. Đáp án: How long has he had it? 
Cấu trúc:

When did + S + \(\left[ \begin{array}{l}start/ begin + to V / Ving \\Vo\end{array} \right.\) ? 
-> How long + \(\left[ \begin{array}{l}have\\has\end{array} \right.\) + S + Vp2?

11. Đáp án: It's 6 months since I last saw my grandmother. 
Cấu trúc: 

S + \(\left[ \begin{array}{l}have\\has\end{array} \right.\) + not + Vp2  for .......

→ It's ........ since + S + last + Vp 

12. Đáp án: The last time Tonny took a bath was on Monday. 
Cấu trúc: 

S + \(\left[ \begin{array}{l}have\\has\end{array} \right.\) + not + Vp2 since....... 

→ The last time + S + Vp + was ........