—Could you ask her ____, please? I have something to tell her.
—OK.
A. call me back B. to call me back
C. call back me D. to call back me
—____ is the cap?
—Twenty yuan.
A. How much B. How old C. How many D. How heavy
I’ll go to visit my aunt in England _______ the summer holiday starts.
A. while B. since C. until D. as soon as
—We can’t be successful ________ we keep working hard.
—I agree with you.
A. if B. unless C. because D. when
________ I got back, I found my mother cooking for me.
A. When B. Before C. Since D. Although
（题文）While she____________ TV in the sitting room, the bell .
A. watches, rings B. is watching, rang
C. was watching, rang D. watched, was ringing
