Complete the following sentences.
1The tremors from India's nuclear tests ............... before the finger-pointing began in Washington.
Wrong!
Use the past perfect "had barely subsided" for an action completed just before another past event.
2For centuries we ............... to cure the ills of the world.
Wrong!
Use the present perfect continuous "have been trying" with "for centuries" for an action continuing up to now.
3............... from work, she often stops at a bookstore.
Wrong!
The natural fixed expression is "On her way home" when describing a stop during a journey home.
4If they ............... the reality, they would not have signed the documents.
Wrong!
Use the past perfect "had known" in the if-clause of a third conditional sentence.
5His ............... always makes a good impression.
Wrong!
The noun phrase "courteous behavior" correctly follows the possessive adjective "His".
6The thieves ............... before the police arrived.
Wrong!
Use the past perfect "had already escaped" for an action completed before another past action.
7Your statement that you ............... his motive cannot be trusted.
Wrong!
The adjective phrase needs the verb "were", so "were totally unaware of" is correct.
Done.
Score: 0/7
Answers
- The tremors from India’s nuclear tests had barely subsided before the finger-pointing began in Washington.
- For centuries we have been trying to cure the ills of the world.
- On her way home from work, she often stops at a bookstore.
- If they had known the reality, they would not have signed the documents.
- His courteous behavior always makes a good impression.
- The thieves had already escaped before the police arrived.
- Your statement that you were totally unaware of his motive cannot be trusted.

