The pen I _____ I_______ is on my desk, right under my nose.
He had no sooner finished his speech ________ the students started cheering.(2011·辽宁)
—It's nice.Never before________ such a special drink! —I'm glad you like it.(2011·福建)
Was it on a lonely island ________ he was saved one month after the boat went down?(2011·四川)
________ parents say and do has a lifelong effect on their children.
Choosing the right dictionary depends on ________ you want to use it for.