_______ she was your friend, I would have invited her to the party.
| A．If I know | B．Were I to know | C．If I knew | D．Had I known |
. We wanted to get home before dark, but it didn’t quite _____ as planned.
| A．find out | B．turn out | C．carry out | D．set out |
. —Why do you look worried?
—There are so many problems______.
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
With drink and food ____, the prisoner had to walk out of the cave where he was hiding.
| A．run out | B．run out of | C．running out | D．running out of |
That’s such a well-known place______everyone wants to visit______ we can find it in the map of the world.
| A．that, as | B．as, as | C．that, that | D．as, that |
31. The Tower of London is _____ the Church tower.
| A．twice high than | B．two times as high as |
| C．twice higher as | D．three times the height of |