[ Tag Question ]
They have visited Viet Nam, ……………….?
A. haven’t they?
B. have they?
C. hadn’t they?
D. had they?

Random Topics:
Grammar - Countable/ UncountableConjunction: Because and SoPronouns, Sentence Structure, and Figurative LanguagePast Simple - Present PerfectWho or WhomPast and Present ContinuousTenses & PassiveVerb FormsFuture Tense - will and going toGrammar - could / could notOther quiz:
Grammar › ViewWhat is ____?
A. job Mary
B. Mary job
C. Mary’s job
D. job’s Mary
Grammar › View
Simple future.
A. There will be robots at home.
B. There won’t be new cars.
C. There won’t be new travels.
Grammar › ViewShe __ at the cinema last week.
A. was
B. were
C. is
D. weren’t
Vocabulary › View
………….(n) a type of animal that lived a long time before people.
A. Museum
B. Dinosaur
C. Cow
