[ Grammar ]
In modern times people have to keep up _____ new technologies.
A. with
B. of
C. at
D. in

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Present Simple Tense PassiveGrammar (Possessive Pronouns)Adjectives and comparisonsVerbal PhrasesPresent Simple: affirmative, negative, interrogativeModal AuxiliariesClauses and GerundsCoordinating and Subordinating ConjunctionsHomophonesModals of ObligationOther quiz:
Unreal Conditionals › ViewIf I were you, I … in American money.
A. wouldn’t invest
B. would invest
C. didn’t invest
Adverbial Clause, Noun Clause › View
___________ you are, you have to follow the rules.
A. Whatever
B. However
C. Though
D. Whoever