[ Grammar ]
By 2020 I think we will ____________ a settlement on Mars
A. Built
B. Have built
C. Have been building
D. Be built

Random Topics:
Grammar & VocabularyVocab CheckingSynonymsUsed toAdverbs and AdjectivesTenses, Determiners & Subject Verb AgreementWish / If only ( Present)State Verbs and Action VerbsQuestion Tags in Verb TensesConjunctive Adverbs and PunctuationOther quiz:
Grammar › ViewUsed to compare two things
A. among
B. between
Grammar › View
Which sentence is written correctly?
A. As I told you, the test is tomorrow.
B. As, I told you the test is tomorrow.
C. As, I, told you the test is tomorrow.
D. As I told you the test, is tomorrow.