[ Grammar ]
The company replaces employee photo ID cards _____ five years.
A. of each
B. any
C. every
D. all of

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Verb + Infinitive or GerundAdverb Identification, Function, and FormationPrepositional PhrasesAdverbs and Time ExpressionsLinking WordsSocial Media VocabularyPresent Simple or Present ContinuousContinuous TensesInterjections, Tag Questions and Nouns of Direct AddressAdverbs and Adverbial PhrasesOther quiz:
Quantifiers & Modals of Obligation › ViewThe doctor has put me on a strict diet. I _ _ _ _ _ eat more fruit and vegetables and do more exercise.
A. must
B. have to
C. ‘ve to
Grammar › View
You look very hot. Have you ___________?
A. been running
B. run
C. been run
D. running
Grammar › View___ night is quiet. Let’s talk a walk.
A. a
B. an
C. the
Grammar › View
We __________ some grammar exercises at the moment
A. do
B. is doing
C. doing
D. are doing
