When she came in, she found a stranger ______ at the back of the classroom with his eyes ______ upon her.
This building is ___ that one.
Will you please try to ___ the article ___ to about 3000 words?
Mother: Bob is sure ___ tonigh. Father: Don't be so sure ___ it.
We found ___ for us to finish the work within two days.
Professor Smith ___ China yesterday.