【单选题】____salad do you want ? Just a little .
【单选题】—How long is it ___ the new math teacher came here? —Two weeks. The students just wonder how ___ they can go with him. [ ]
【单选题】-______are you staying there? -Just for two days.
【多选题】古田会议确立了思想建党、政治建军原则,规定红军是一个执行革命的政治任务的武装集团,必须()。