Modern China is experiencing a completely new period__ respect for science and creativity has become the guiding principle of society．
| A．of which | B．where | C．in which | D．which |
The role change from husband to father, although difficult, doesn’t seem so great as _____ from wife to mother.
| A．one | B．that | C．it | D．those |
I _____ to get in touch with Tony, my childhood friend, but without success. .
| A．adapted | B．adopted | C．attempted | D．appealed |
The reason _____ he gave for his absence is _____ he was drunken.
| A．why; that | B．because; that | C．that; because | D．that; that |
．---It is reported that there is _____ big breakthrough in the cancer treatment．
---If only my son could be brought back to _____ life!
| A．a; / | B．/; a | C．the; the | D．a; the |
Scientists have created the world’s smallest "snowman",_____ about a fifth of the width of a human hair．
| A．measures | B．measuring | C．measured | D．to measure |