You can’t guess ______ when he was admitted by Beijing University.
| A．how he was happy | B．how happy was he |
| C．how happy he was | D．he was how happy |
Is this school ______you studied in three years ago?
| A．where | B．that | C．the one | D．which |
Mr．Wang ______ the person referred to at the meeting be put in prison．
| A．said | B．wished |
| C．agreed | D．suggested |
It is well known to all that water, ______ enough, can change into ice quickly．
| A．if cooling | B．though to be cooled |
| C．when cooled | D．when is cooled |
I would love ______ to the party that evening, but I had an unexpected visitor．
| A．to go | B．to have gone | C．going | D．having gone |
Thomas _____ in inventing many electrical machines
| A．was successful | B．succeed | C．was success | D．successes |