[ Grammar ]
To receive payment, vendors must submit an invoice online … twenty business days of finishing a project.
A. whether
B. whose
C. within
D. while
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Toeic VerbVocabulary and TensesPresent Tenses: Simple vs ContinuousLexico and GrammarGerunds and InfinitivesPresent / Future / Present Progressive / non Action VerbsPresent Perfect Simple & ContinuousMust / must notFamily Members and Present SimpleGrammar ( going to)Other quiz:
Grammar › ViewNever postpone till tomorrow what you can do today.
A. take over
B. put off
C. call off
D. turn down
Modal Verbs › View
You look tired. You ____________ go to bed.
A. shall
B. must
C. will
D. should