[ Perfect Verb Tenses ]
Imagine Emma and Rohan are busy scientists in a lab. Convert their exciting moment into the past perfect tense: “Emma and Rohan check data after they arrive at the laboratory.”
A. Emma and Rohan checked data after they arrive at the laboratory.
B. Emma and Rohan have checked data after they arrive at the laboratory.
C. Emma and Rohan had checked data after they arrived at the laboratory.
D. Emma and Rohan will have checked data after they arrive at the laboratory.

Random Topics:
Direct Object and Indirect ObjectVerb-ing and InfinitiveComparison of Adjectives and AdverbsPositive and Negative Connotations-ed/-ing AdjectivesFuture Tense VerbConditional Sentence 0, 1Present ContinousWish SentencesInfinitives and ING FormsOther quiz:
Conjunctions › ViewThey didn’t study at all _____ they failed the examination.
A. and
B. but
C. because
D. or
E. so
Tenses › View
Identify the verb tense in the sentence: ‘We will finish our homework later.’
A. Past simple tense
B. Future simple tense
C. Future perfect tense
D. Present continuous tense