Complete the sentences by putting the verb in brackets into the Past Perfect or Past Perfect Continuous Tense.

1. I … (not to clean) windows before my mother came. 2. At last the librarian gave me the book which I … (to wait) for during two months. 3. By the end of the year he … (to read) about two hundred pages. 4. She … (to work) at her report since last year. 5. The message arrived five minutes after he … (to leave) the house. 6. It … (to rain) all day long.

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