Life for us is _________exercise in making different choices and can never come
to_________end until the end of life itself.
| A．/; / | B．/; an | C．an;/ | D．an;an |
In our class ,when the bell rang and the teacher closed his book ,it was a ________for everyone to stand up .
| A．signal | B．chance | C．mark | D．measure |
Maybe you have a goal to _______,a tricky question to answer or you just want to expand your mind!Here are some techniques to help .
| A．achieve | B．kick | C．catch | D．score |
The UN system is a major purchaser of goods and services ,_______over $4 billion a year .
| A．to total | B．totaling | C．totaled | D．total |
I can’t tell you the exact time when I will get there ._______,I’ll be there as early as I can .
| A．No matter | B．Anyhow | C．Therefore | D．Besides |
We should not judge a person by his _______and the clothes he wears .
| A．stage | B．quality | C．pace | D．appearance |