Fill in the blanks.
1Industrial waste must be prevented ............... our rivers.
Wrong!
After "prevented", use "from polluting" to show what is stopped.
2With ............... poor vision, he really needs glasses.
Wrong!
Use "such" before an adjective + noun phrase, so "such" is correct here.
3Columbus was a missionary ............... made the world accept his dream.
Wrong!
Use "who" as the subject relative pronoun for a person.
4Do you have a valid reason ............... late?
Wrong!
The natural phrase is "reason for being" when giving an explanation for lateness.
5The passport has to be signed before the official ............... validate it.
Wrong!
Use "can" to show that validation becomes possible after the passport is signed.
6Rumors that an escaped convict was on the plane ............... to be unfounded.
Wrong!
Use the past simple "proved" for a completed past result.
7His immoral life was a disgrace ............... his family.
Wrong!
The fixed expression is "a disgrace to" someone or something.
8............... in that desert property was a foolish venture.
Wrong!
Use the gerund "Investing" as the subject before "was a foolish venture".
9He has been unhealthy ............... childhood.
Wrong!
Use "since" with a starting point in time such as childhood.
10............... you wear the red dress or the blue dress is really unimportant.
Wrong!
Use "Whether" to introduce a choice between two alternatives.
11The two men do the same job ............... earn unequal salaries.
Wrong!
Use "but" to contrast the same job with unequal salaries.
12............... the two teams are unequal, the game isn't exciting.
Wrong!
Use "Since" to give the reason why the game is not exciting.
Done.
Score: 0/12
Answers
- Industrial waste must be prevented from polluting our rivers.
- With such poor vision, he really needs glasses.
- Columbus was a missionary who made the world accept his dream.
- Do you have a valid reason for being late?
- The passport has to be signed before the official can validate it.
- Rumors that an escaped convict was on the plane proved to be unfounded.
- His immoral life was a disgrace to his family.
- Investing in that desert property was a foolish venture.
- He has been unhealthy since childhood.
- Whether you wear the red dress or the blue dress is really unimportant.
- The two men do the same job but earn unequal salaries.
- Since the two teams are unequal, the game isn’t exciting.

