I HEARD SOMEONE ... THE WINDOW.A. OPENEDB. OPENSC. OPENINGD. TO OP...

32. - 1500 QUESTION CERTIFICATION EXAM TESTS ENGLISH LANGUAGE PPT

1500 QUESTION CERTIFICATION EXAM TESTS ENGLISH LANGUAGE PPT

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32. I heard someone ... the window.

a. opened

b. opens

c. opening

d. to open

 c