(2013·安徽名校联考Ⅱ)________ nearly all behavior is learned behavior is a basic assumption ________ has been put forward by social scientists

t school, English is compulsory for allstudents, but French and Russian are ______

When Jack arrived _____the airport，he found it hard to look for a place to park his car．

We had to be patient because it ______ some time ______ we got the full results

What does the sign over there say — No person _________ bring drinks into the studentcomputer room.