what can you 【 do I can 【 run 】.but i 【 am skating 】 now.
解析：can 后跟动词原形,now 是现在进行时的判断词,结构:主语+ am/ is/ are + 现在分词
不明白的再问哟,请及时采纳,多谢!1 I__(go) to school by bus,and he __(go)to school by bike.2 what lessons __(do) he —（have) in the morning? he __(have) four.3 __ she often __(write) to you ?yes,she__(do）。4who__(sing)beautifull in your class? jim.5the __(butterfly) in the flowers. i like __verymuch.6 oh, there__(be) many pears in the box. __(be)they your pears? no,they__.1. go... goes2. does.. have... has3. Does..write;does4. sings5. butterflies are flying; them6 are; Are; aren't.