— I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
— __________! I’m sure you’ll make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
_________ in the fields on a March afternoon，he could feel the warmth of spring．
| A．To walk | B．Walking |
| C．Walked | D．Having walked |
_________ to reach them on the phone，we sent an email instead．
| A．Fail | B．Failed |
| C．To fail | D．Having failed |
We went right round to the west coast by __________ sea instead of driving across _________ continent. 
| A．the … the | B．/ … the | C．the … / | D．/ … / |
In____review of 44 studies, American researchers found that men and women____who ate six key foods daily cut the risk of ______ heart disease by 76%. 
| A．a; the | B．the; a | C．a; 不填 | D．不填； a |
Washing machines made by China have won ____worldwide attention and Haier has become _____ popular name. 
| A．a; the | B．/; a | C．/; the | D．the; a |