$\text{1.}$ She asked me where he was.

$\text{→}$ HTD ⇒ QKD

$\text{2.}$ She asked me what I was doing.

$\text{→}$ HTTD ⇒ QKTD

$\text{3.}$ She asked me where I had gone out the night before.

$\text{→}$ QKD ⇒ QKHT

$\text{→}$ last night ⇒ the night before

$\text{4.}$ She asked me who had been the beautiful woman.

$\text{→}$ QKD ⇒ QKHT

$\text{→}$ that ⇒ the

$\text{5.}$ She asked me how my mother was.

$\text{→}$ HTD ⇒ QKD

$\text{6.}$ She asked me what I was going to do at the weekend.

$\text{→}$ am ⇒ was

$\text{7.}$ She asked me where I would live after graduation.

$\text{→}$ will ⇒ would

$\text{8.}$ She asked me what I had been doing when she had seen me.

$\text{→}$ QKTD ⇒ QKHTTD

$\text{→}$ QKD ⇒ QKHT

$\text{9.}$ She asked me how the journey had been.

$\text{→}$ QKD ⇒ QKHT

$\text{10.}$ She asked me how often I went to the cinema.

$\text{→}$ HTD ⇒ QKD

$\text{11.}$ She asked me if I lived in London.

$\text{→}$ HTD ⇒ QKD

$\text{12.}$ She asked me if he had arrived on time.

$\text{→}$ QKD ⇒ QKHT