1.-If you are free,I'll invite you to see a film tomorrow.
- .It couldn't be better.( )
- .It couldn't be better.( )
A. | I'm sorry | B. | Thank you | ||
C. | That's right | D. | Don't mention it |
20.Please remember nothing can be learned ______ hard work.( )
A. | by | B. | at | C. | without | D. | for |
19.I hurried ________ I wouldn't be late for class.( )
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A. | since | B. | as if | C. | so that | D. | unless |