––When will you be back, Peter? –– a couple of days. A. On B. In C. For D. By——青夏教育精英家教网—

摘要： ––When will you be back, Peter? –– a couple of days. A. On B. In C. For D. By

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—When will you be back, Peter?

—___________ a couple of days.

A. On B. In C. For D. By

32. ––When will you be back, Peter?

––________a couple of days.

A. On B. In C. For D. By

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