Comrade Li ________ be in Beijing because I saw him in town only a few minutes ago.
A、mustn’tB
暂无解析
Wooddoesnotconductelectricity;________.
ComradeLi________beinBeijingbecauseIsawhimintownonlyafewminutesago.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Iwonderifhecouldgetit________(do)beforetomorrow.
