[ Adverbial Clauses ]
I will keep learning Vietnamese____ I am upper intermediate.
A. as soon as
B. until
C. once
D. everywhere

Random Topics:
Grammar of Conjunctions and PrepotitionsSimilesGrammar and Sentence CorrectionTenses and ArticlePronouns, Sentence Structure, and Figurative LanguageModal Verbs and ConjuctionsConjunctions - Conjunctive AdverbsTOEIC GrammarPresent Simple or Present ContinuousAdverbial PhrasesOther quiz:
Vocabulary › Viewmodest
A. cautiously; in a watchful way
B. extremely; sharply; eagerly
C. humble; not boastful
D. extremely loud
Grammar › View
He hoped that he …. to a managerial position.
A. may be promoted
B. would be promoted
Future Tenses › ViewWhich sentence uses the future continuous tense?
A. I will call you later.
B. She will be studying at 6 PM.
C. They will have completed the project.
D. He will go to the gym.
Grammar › View
The rain __________________one hour ago.
A. Stop
B. Stopped
