[ Tenses ]
How long ___ he been studying at the Royal University of Phnom Penh?
A. does
B. has
C. is
D. was

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Vocabulary and GrammarHave to / Do not have toHope, Thank, Modal VerbsRelative Clauses and UsageAsking and Giving SuggestionWh QuestionsReported Speech and Reported QuestionsPerfect Verb TensesDefinite and Indefinite ArticlesClauses and GerundsOther quiz:
Present Simple › ViewThe Japanese _____ friendly people.
A. are
B. be
C. is
D. was
Noun Clauses › View
The professor ……… that the nutritionist said chocolate was healthy only because she is employed by one of the biggest chocolate company.
A. wondered
B. argued
C. pretended
D. wished