.present tense (10 sentences) 2.past tense (10 sentences) 3.continusus tense(10 sentences) 4.has,have,is,a(10 sentences) 5.fasts事实/order命令 (10 sentencesBesides English, he has to study German. 除了英语, 他还要学德语。 Ben, Carol and Mike, for instance. 他的几个朋友来了, 比如本、