你找不到朋友在哪里，你可以这样说（）

A.What's your name

B.Where is my mother

A.What's your name

B.Where is my mother

C.询问人在哪里，用Where提问

A.I had a race with you then

B.I had a race with Peter then

C.I have a race with Peter then

A.Let's help you

B.Let me help you

C.ome to help me

A.He seemed a little unhappy yesterday

B.He seems a little unhappy yesterday

C.He seems unhappy yesterday