[ Grammar ]
Since 1965, the maple tree with red leaves ________ the most well-known Canadian symbol
A. has become
B. became
C. become
D. becoming
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Question WordsThe Present Progressive TenseRelative PronounsTenses PracticeContrast Linking WordsPresent Tenses: Simple vs ContinuousPassive Voice and ModalsPronouns ( Interrogative )Sentence Structure and ConjunctionsPast Simple, Present Perfect TenseOther quiz:
Vocabulary and Idioms › ViewPatients at highest ______ of complications can be detected based on artificial intelligence techniques.
A. danger
B. risk
C. chance
D. threat
Simple and Compound Sentences › View
She will leave soon and she still has to pack her things.
A. Simple Sentence
B. Compound Sentence