…Mr．Ding，Ihavesometrouble
问题详情：…Mr．Ding，Ihavesometrouble_________thepassage! …Remember________itthreeorfourtimesatleast! A．tounderstand；reading B．understanding；reading C．understanding；toread ...
Ihavesometrouble
问题详情：Ihavesometrouble_____physics.Iwouldbegrateful______youifyoucouldgivemesomeadviceonit.A．with；with B．in；to C．in；with D．with；to【回答】D知识点：介词题型：选择题...