С: choose the appropriate forms of the verbs to complete the sentences. 1) i left the classroom as soon as i (had written/had been writing) the test. 2) andy came and said that they (had written/had been writing) their essays for an hour and a half. 3) my mother gave me her mobile because i (had lost/had been losing) mine. 4) george said he (had prepared/had been preparing) for his exam for a week. 5) after jim (had paid/had been paying) for the books he left the shop. 6) i thought we (had waited/had been waiting) for ann too long and decided to tell andrew about it. 7) we (had swum/had been swimming) in the river for half an hour when alfred said he was going to lie in the sun a bit. 8) after lily (had packed/had been packing) her suitcase she headed for the car.

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