[ Tenses ]
He_____________five letters to the manager by the time he finally received an answer.
A. wrote
B. was writing
C. had written
D. had been writting

Random Topics:
Future Tenses, Conditionals and ProfessionsPast Perfect and Past Perfect Continuous TenseThere is, There are, Some, AnyGerund & InfinitiveAdjective OrderPresent and Past Simple TenseInterjection & Prepositional PhrasesAdjective ClausesAdjectives-Comparison, SuperlativeGerunds and ModalsOther quiz:
Vocabulary › ViewWhat is a “Calamity”?
A. A fortunate event
B. A disastrous event
C. A minor inconvenience
D. A happy occasion
Tenses › View
Look! The children ________ in the pool.
A. is swimming
B. had swum
C. are swimming
D. has swum
Tenses › ViewI (be) sorry that I (not be) nicer to him.
A. was/ hadn’t been
B. had been/ wasn’t
C. had been/ hadn’t been
Grammar › View
They __________ for a math test last night.
A. studied
B. studyed
C. are studying
D. studying
