[ Tenses ]
The automatic door didn’t …… when I stepped in front of it.
A. opened
B. be open
C. open
D. to open

Random Topics:
Distinguishing Future TensesGrammar - FutureConnectivesPronouns, Sentence Structure, and Figurative LanguagePresent Simple and Modal VerbsLinking WordsHow often - long - much - manyGrammar for TOEFLArticle and Order of AdjctiveModals of AdvisabilityOther quiz:
Grammar › ViewI received a bunch of flowers __________ the Valentine’s Day.
A. at
B. in
C. on
D. during
Vocabulary › View
The process of growth or increase, typically by the gradual accumulation of additional layers or matter.
A. accretion
B. congealed
C. sheepish
D. quarrel
