Shut the window, _________ it’ll get too cold here.
| A．so | B．yet | C．but | D．otherwise |
In that school, English is compulsory for all students, but French and Russian are ______.
| A．special | B．regional | C． optional | D．original |
Sometimes proper answers are not far to seek ______ food safety problems.
| A．in | B．to | C．on | D．after |
To get a better grade, you should ______ the notes again before the test.
| A．go over | B．get over |
| C．turn over | D．take over |
I ______ through that bitter period without your generous help.
| A．couldn’t have gone | B．didn’t go |
| C．wouldn’t go | D．hadn’t gone |
Even the best writers sometimes find themselves _____ for words.
| A．lose | B．lost | C．to lose | D．having lost |