Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. 

Alternative sources of energy have environmental advantages. It’s not easy to make full use of them.

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.