He began to _________ his desk and finish off the week’s work．
A.tidy upB.clear upC.do upD.fix up在线课程A
句意为“他开始整理书桌，结束一周的工作”。tidy up“收拾，整理”；clear up“消除，放晴”；do up“系上，扣上”；fix up“安排，解决”。