Theproblem________whenthestudentsrefusedtodotheirhomework.
A、aroseTheboyranoutoftheclassroomwithouttheteacher's_______.
Iboughtthiseighteenthcenturywritingdeskataquite________price.
Constructionoftherailwayshelpedtodevelopthenational_______ofTanzaniaandZambia.
ItwasthreeBritishsportsmenwho________banneddrugs.
________theconcerthadbegundidwerealizewhatasplendidshowitwasgoingtobe.
