Which school is more beautiful，ours or___________?
A．they B．them C．their D．theirs
Tu Youyou is very popular because she is the only Chinese________won Nobel Prize in 2015．
A．which B．whom C．whose D．that
—Who is singing in the next room? Is it Betty?
—It_________be her．She has gone to London．
A. must B．mustn’t C．can D．can’t
He________computer games when his parents left home．So he didn’t know where they were．
A. is playing B. plays C．played D：was playing
I could speak________French_______Chinese， but luckily I could talk with them in English．
A. both；and B. neither；nor
C．either；or D．not only；but also
We’ve talked a lot_________cars．What about trains?
A．aboutB．withC．ofD．in
