Think twice before you others’ cheating in the exam, because you are not going to help but indeed to kill their motivation for study.
| A．consist in | B．lie in | C．assist in | D．result in |
Samuel Clemens，______ Mark Twain, wrote many popular stories.
| A．was known as | B．known as |
| C．was known for | D．known for |
The old man used _____ in front of his house and he has got used to _______ like that.
| A．to sit; doing | B．to sitting; do |
| C．to sit; do | D．to sitting; doing |
Mr. Brown, ______ chairman of the trade union, will visit our factory in _____ month of May.
| A．/; the | B．a; the | C．the; / | D．the; the |
He has called several times this morning, ____ there is something very urgent.
| A．really | B．especially | C．obviously | D．terribly |
You have to wear special clothing, a helmet and a life jacket ____ your raft gets turned upside down or sinks.
| A．so that | B．in order that | C．now that | D．in case |