题目

用括号内所给动词的适当形式填空【小题1】Xiao Li promised to chat with me on the Internet, but so far he __________ (not do) so.【小题2】At the moment we have too much to do __________ (think) of doing anything else.【小题3】Last Friday afternoon the young man __________ (hurt) in the traffic accident which happened on the highway.【小题4】Sound __________ (travel) through air at a speed of about 340 meters per second.【小题5】Food cannot __________ (keep) properly in a fridge at an unsuitable temperature.【小题6】The snow __________ (stop) when she woke up在△ABC中，A，B，C的对边分别为a，b，c，且sinB=12，sinC=32则a：b：c为（　　） A、1：3：2B、1：1：3C、1：2：3D、2：1：3或1：1：3