[ Grammar ]
The patient will not recover unless he __________ an operation.
A. had undergone
B. would undergo
C. undergoes
D. was undergoing
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Definite and Zero ArticleConditionals / Unreal PastCohesive DevicesGrammar : can, could and be able toPast Simple or Past ContinuousPrepositions & Prepositional PhrasesBare Infinitive and To InfinitiveGrammar - Present Perfect with for and sinceModal VerbActive & PassiveOther quiz:
Grammar and Vocabulary › ViewChoose the word or phrase that goes with waiter.
A. hospital
B. restaurant
C. office
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These orchids are quite rare, ………. they?
A. are
B. were
C. weren’t
D. aren’t
Indefinite and Reflexive Pronouns › ViewAstronauts train ______ to live in zero gravity.
A. himself
B. themselves
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S’tieng is ___________ ethnic group living mostly in ___________ southern provinces of Vietnam.
A. a/ –
B. the/ a
C. an/ the