It_____five years since he has left for Beijing.A was B has been C is D is going to beWhere have you ______ these days?I have____to Yangzhou with my friends.A been gone B been been C gone been D gone gone The bus _____on the road for 2 hours so far.A

SI si It_____five years since he has left for Beijing.A was B has been C is D is going to beWhere have you ______ these days?I have____to Yangzhou with my friends.A been gone B been been C gone been D gone gone The bus _____on the road for 2 hours so far.A 句型转换：1.Si Yu taught herself English when she was five years old Si Yu ____ English ___ when You've missed the bus.It_____five minutes ago.A.You've missed the bus.It_____five minutes ago.A.has leftB.had leftC.leftD.would leave I haven't seen him in years.句中 seen him 连读成/si:nim/可以吗? 英语填空l do not know his 【a _____】maybe he si about 13 years old years JIA SI si jia SI是什么意思? si半导体 si是什么意思 SI是什么意思 Si Seulement Mg Si Si Jetais dai si