[ Grammar ]
Acupuncture is part of traditional Chinese medicine(TCM) and ____ in China for thousands of years.
A. has been used
B. has using
C. has used
D. has been using

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Modals for Advice, Obligation/Prohibition, Necessity and Lack of NecessityFirst Conditional SentenceApostrophe GrammarModal and Modal PerfectPrepositions and Preposition PhrasesModals and Comparative SuperlativePrepositions of Place & TimeTenses and ArticlesCountable - UncountableParticipal PhrasesOther quiz:
Conjunctions › ViewThe dog won’t fight ___ you frighten it.
A. if
B. provided
C. unless
D. even if
Grammar › View
He missed his flight _________ his car broke down on the highway
A. so
B. but
C. although
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Present Simple › View“I stay at home ________ weekends”
A. on
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Grammar › View
What’s the interjection in the sentence below?
I think I, uh, forgot your name.
A. name
B. forgot
C. think
D. uh