[ Grammar ]
Which perfect tense is being used?
We will have walked for 2 hours by the time we get back to camp.
A. past perfect
B. present perfect
C. future perfect

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Nouns, Pronouns, Antecedents, and Singular and PluralApostrophes and Quotation MarksAdverb & Compound SentencesGerund vs InfinitiveConjunctions, Prepositions and InterjectionsAdverbs (manners & modifiers)Language Features: Reflective ArticleConstrative ConjunctionPresent Simple Affirmative and NegativeModal SpeculationOther quiz:
Grammar › ViewChoose the correct tense for this sentence:
I am working in a call center
___
A. Present simple
B. Present continuous
C. Present perfect
D. Present perfect continuous
Vocabulary and Grammar › View
The astronaut approached the tiny creature _ because they did not know if it was dangerous or friendly.
A. boldly
B. quickly
C. cautiously
D. courageously
