纯虚数$z$满足$\left(1-i\right)z=1+ai$，则实数$a$等于（   ）

下列关于人体细胞内ATP的描述中，正确的是（　　）

    Welcome to ____ (I) room. Look at the photo ____ the wall. You can ____ (see) my parents, my sister and me in the photo. Look! This is my jacket. It is ____ . My hat is blue, too. They ____ (be) on my bed. Oh, can you see the model plane?____ looks very nice . You can see my books ____ pencils are on the desk. ____ is my baseball? It's ____ on the desk. It's under the chair. Do you want to make friends(交朋友) with me? You can call me ____ 689-5265.

A.It's my brother's.

B.No, I didn't.

C.I'm sorry.

D.Yes, I do.

E.I got up at seven thirty.

(____)1. Did you watch TV last night?      

(____)2. Do you usually help your parents?

(____)3. You shouldn't go to school late.   

(____)4. When did you get up this morning?

(____)5. Whose coat is it?