It has been a long time for human to make _____ to reach the moon.
| A．its easy | B．it’s possible | C．it truth | D．it possible |
East of the lake__________, one of which is twice the size of the other.
| A．lies two villages | B．lie two villages | C．do two villages lie | D．two villages lie |
The room, although_________ to be kept locked, was often left open.
| A．supposing | B．supposed | C．to be supposed | D．having supposed |
-----I am sorry for having been so rude to you.
---------That’s OK. I am sure you didn’t___________.
| A．have to | B．mean to | C．hope so | D．want so |
This book is said to be a special one, which __________many events not found in other history books.
| A．writes | B．refers | C．deals | D．covers |
Only when I read this story for a second time _________to appreciate its beauty.
| A．did I begin | B．that I begin | C．I began | D．had I begin |