[ Grammar ]
All participants (taking/taken) the test should sign up.
A. taking
B. taken

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Grammar for IELTSPaired ConjunctionPhrasal Verb Put & GoAdverb ClauseHave to/Has toUnless If First ConditionalZero ConditionalProgressive Perfect and Simple Verb TensesConditional Sentences and Verb FormModals and PhrasesOther quiz:
Verb Agreement › ViewEveryone in the class (needs/need) to submit their homework. Choose the correct verb form that agrees with the subject.
A. needs
B. need
Toeic Verb › View
Sales executives —— at the Glory Business Center for the annual conference last Friday.
A. convene
B. convened
C. convenes
D. convening