Every year，nearly 270 million pounds of grapes arrive in California，most of them _______ from Chile to the Port of Los Angeles. 

He refused to sell the old house, for it had too many pleasant ________with his childhood. 

With more people _____ the traffic rules, our city is becoming better organized.

With so many people ______ in the mine(矿), none of the rescue workers would stop to have a rest.

With a lot of problem ________, the newly – elected president is having a hard time.