—Where did you get this book?
—I picked it up from a secondhand bookshop if you ________ know.
| A．must | B．will |
| C．can | D．shall |
Even on holidays, he preferred doing something________
| A．to sleep | B．sleeping | C．to be slpet | D．to sleeping |
I hope there are enough glasses for each guest to have___________.
| A．one | B．不填 | C．them | D．to |
Nobody believes him ____________ what he said.
| A．even enough | B．in spite of | C．no matter | D．contrary to |
It’s clear__________ that a hard working student has___________ a great interest in science.
| A．不填; discovered | B．不填; developed |
| C．that; invented | D．that; developed |
Mr. White, who___________ moved to the south of France, still lives in London.
| A．think to have | B．think had |
| C．though have | D．thought had |