7、.toC.at()10.Doyoulike______?A.adogB.dogC.dogs()11.Thestudentsare________aMusiclesson.A.haveB.tohavingC.having()12.There_____abirdandsomeflowersinthepicture.A.amB.isC.are( ) 13. I can’t , but I can . A. skating; ski B. skate; ski C. skate; skiing( )