[ 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:
Grammar › ViewWhat is the correct word for a place where prepared food is served to customers?
A. school
B. gym
C. park
D. restaurant
Present Tense › View
He _______________ the guitar three times a week.
A. play
B. plays
C. played
D. is playing
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
