I don't know how long she will be away from home. She ______ living in London since March
Verified Answer
A. Has been
B. Is
C. Was
D. Had been
Explanation:
The phrase 'since March' indicates an action that began in the past (March) and is still continuing in the present. This requires the use of the present perfect continuous tense, which is 'has been living.' (The 'living' is already part of the sentence, so 'Has been' completes the verb phrase).