The pen I _______ I _______is on my desk, right under my nose.
The young man insisted that he _______ nothing wrong and ________ free.
_______ his arrival at the airport , the film star was recognized and soon surrounded by a group of film stars.
Seeing me, Tom---- one of my old friend, walked across the street ______ to me, saying “Long time no see.”
.There has been rising demand for grain as _______ industrial material in spite of the nation’s good harvests.
At the meeting they discussed different ______ to the study of mathematics.