5、wohoursB.fortwohoursC.forahourD.atanhour()17.—What'syourfavoritecolor?—Myfavoritecoloris______.A.baseballB.scienceC.hamburgerD.white()18. The boy likes to play ______ his dog. A. forB. with C. to D.at()19. The students are _____ after P.E. class. A. busyB. interesting C. tired D. relaxing ()