[ Tenses ]
Up to the present, they (understand) what life is.
A. had understood
B. have understood
C. were understanding
D. are understanding

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Grammar (either..or.. and neither..nor..)Linking VerbSimple Future - WillTenses and ArticleSimple present/ past/ future tenseContrastive ConjunctionGrammar - could / could notVocabulary and DefinitionsGrammar - Present Perfect with already, just, yetGrammar - to beOther quiz:
Gerund and Infinitive › ViewMy uncle recommends me ___ (visit) the new Kids Science museum in his town for the upcoming holiday.
A. to visit
B. visiting
C. visited
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Mr Kim would like … meeting about finance as soon as possible
A. arrangement
B. having arranged
C. arrange
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A. that
B. who
C. which
D. whose
Modals › View
My girlfriend is expecting me at 8 p.m. I … be late!
A. mustn’t
B. don’t have to
C. have to
D. must