[ Grammar ]
I was taking a nap ____ the mail carrier arrived.
A. when
B. while

Random Topics:
Participle - ing/ edAdjectives Ed and IngGerund, Infinitive, Bare VerbSuffixes (ing-ed) SentencesPresent Simple or Present ContinuousModals with Perfect InfinitiveComparative AdjectivePresent Simple and Modal VerbsThe Structural Types of SentencesDefinite ArticlesOther quiz:
Homonyms › ViewFor better texture you must ___ the dough longer.
a. knead
b. kneed
c. need
Present Simple › View
We ____ to the park on Sundays.
A. goes
B. going
C. go
D. gone
TOEIC › ViewWe are looking for a new office that is _____ than our current one.
(A) large
(B) largely
(C) larger
(D)l argest
Conjunctions › View
The team was losing; __________, they managed to win the game in the last minute.
A. because
B. therefore
C. nevertheless
D. otherwise
