_____ the old man’s sons wanted to know was ____ the gold had been hidden.
| A．What; where | B．That; what | C．What; that | D．That; which |
. That’s the new machine ______ parts are too small to be seen.
| A．that | B．which | C．whose | D．what |
（江西卷31）. The girl arranged to have piano lessons at the training centre with her sister she would stay for an hour.
| A．where | B．who | C．which | D．what |
. The newly built café, the walls of_______ are painted light green, is really a peaceful place for us, specially after hard work.
| A．that | B．it | C．what | D．which |
. I’ve become good friend with several of the student in my school _______I meet in the English speech contest last year.
| A．who | B．where | C．when | D．which |
.Stephen Hawking believes that the earth is unlikely to be the only planets life has developed gradually.
| A．that | B．where | C．which | D．whose |