GRAMMATICAL STRUCTURES
lunes, 13 de febrero de 2012
STRUCTURE OF THE PAST PERFECT PROGRESSIVE
QUESTIONS
HAD +
SUBJECT
+
BEEN+
VERB ING + COMPLEMENT
WH QUESTIONS
WH + HAD +
SUBJECT
+
BEEN+
VERB ING + COMPLEMENT
EXCERCISES
http://www.ego4u.com/en/cram-up/grammar/past-perfect-progressive/exercises
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