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Muriel G. TEFL IELTS
Professional Teacher
Present Perfect Continuous (Present Perfect Progressive)
4) She _______________ on that project for several weeks.
a. has not been working
b. have not been working
3 quizzed
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Apr 2, 2026 9:29 PM
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Muriel G. TEFL IELTS
Language Skills
Chinese (Mandarin), English, Filipino (Tagalog), Spanish
Learning Language
Chinese (Mandarin), Spanish
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