201. Tom _____ into the house when no one .
| A．slipped; was noticing | B．had slipped; noticed |
| C．slipped; had noticed | D．was slipping; noticed |
Travelling west, you set your clock ______; travelling east, you set it ahead.
| A．behind | B．forward | C．back | D．ahead |
— Look! How long _____ like this?
— Three weeks! It’s usual here that rain _____ without stopping these days of the year.
| A．had it rained; pours | B．has it been raining; pours |
| C．is it rained; is pouring | D．does it rain; pours |
Mo Yan said he would never forget those years ________ he lived in his hometown with his family, ________ has a great effect on his life.
| A．when; that | B．that; which | C．which; who | D．when; which |
A man does not know the difficulty of anything _______ he does it personally.
| A．although | B．if | C．because | D．unless |
The notes for glossary (词汇) are very exact and particular, which could help readers to break the language so directly and effectively.
| A．defence | B．function | C．response | D．barrier |