Roy: ______ It 's getting late.

Ellen: Must you go soon?

Rock: ______.

Sharon: Very well, and the experiment is nearly finished.

Whodoyousupposeistheman____ourteacheristalking?

Who do you suppose is the man ____ our teacher is talking ?

Hereisapieceofpaper_____(在上面写着那本书的标题)TheArabianNights.