$\text{1.}$When did Sarah leave? $\textit{QKĐ: ((WH question words) + did + S + Vinf + O}$
$\text{2.}$What is she watching? $\textit{HTTD: Am/is/are + S + Ving + O}$
$\text{3.}$How did you feel before your last maths test? $\textit{QKĐ: ((WH question words) + did + S + Vinf + O}$
$\text{4.}$How far is it from here to ACB bank? $\textit{(How far is it from … to … ?)}$
$\text{5.}$How long have you known Marie? $\textit{HTHT: ((WH question words) + have/has + S + Ved/V3 + O}$
$\text{6.}$What should we do to saving energy. $\textit{Should: ((WH question words) + should + S + Vinf + O}$
$\text{7.}$Why don't we use nuclear power popularly? $\textit{QKĐ: (Why + don't/doesn't + S + Vinf + O}$
$\text{8.}$When was Yaly Hydropower Plant constructed? $\textit{QKĐ vs tobe: ((WH question words) + was/were + S + O + (Ved/V2)}$
$\text{9.}$How many types of renewable energy are there? $\textit{HTĐ vs tobe: ((WH question words) + am/is/are + S + O + (Vbare/s/es)}$
$\text{10.}$Why do Vietnamese people go to pagodas at Tet? $\textit{HTĐ vs ĐT thường: ((WH question words) + do/does + S + (Vbare/Vs/es) + O}$
$\underline{Xin Hay nhất ạ!}$