he will have been playing on the piano by that time 为什么要用on

he will have been playing on the piano by that time 为什么要用on 英语翻译he feels that playing chinese folk music on the piano ca On weekends I have to p____ playing the piano. He would have come here on time,but he() by the heavy traffi he will have arrived by this time tomorrow.为什么要用现在完成时? the agent acts on a maxim that he can at the same time will he go to work at 8:00改错 I like playing piano on the weekend Who is the girl playing the piano on the square? ( )Jack says that he likes playing the piano.------,he does He must have been asleep at that time,(wasn't) he?为什么是用 wasn He likes playing the piano."playing”是现在进行时,那么“like”为什么要加s? 改错题 The novel will have been finished by the time she will b