____ well prepared you are , you still need a lot of luck in mountain climbing.
| A．However | B．Whatever | C．No matter | D．Although |
I think ________ good knowledge of English is ________ great help when you are traveling around the world.
| A．不填;a | B．a; a | C．a; the | D．a; 不填 |
.His composition was so confusing that I could hardly make any ________of it what’s over.
| A．meaning | B．message | C．information | D．sense |
There are certain _______when you have to interrupt people who are in the middle of doing something.
| A．chances | B．situations | C．occasions | D．opportunities |
.Being able to speak another language well is a great _____ when you're looking for a job..
| A．advantage | B．chance | C．assistant | D．importance |
It is_____work of art that everyone wants to have a look at it.
| A．so unusual | B．such unusual | C．such an unusual | D．so an unusual |