Safety experts are trying to establish the ______ of yesterday’s train crash.

The first amusement park in our city was a ______ success for its owners. Everybody would go there to have a good time.

I ______ an old friend yesterday. It was really nice to see her after all this time

About two hundred illegal immigrants have been ______ from the country this year.

He said he _________ then, but he would get to the party by nine.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 

After the party, they didn’t remember _______ the ashtrays out. The first thing I did in the morning was to open the windows.