一般現(xiàn)在時(shí) The sky is blue .天空是藍(lán)的.
Is the sky blue Yes it is .天空是藍(lán)的嗎?是的.
現(xiàn)在進(jìn)行時(shí) She is swimming now.她現(xiàn)在在游泳.
Is she swimming now?Yes ,she is .她現(xiàn)在在游泳嗎?是的.
一般過去式 He ran （run 的過去式）yesterday.他昨天跑了步.
Did （do 的過去式）he run yesterday?yes,he is .他昨天跑步了嗎?是的.
一般將來時(shí) She is going to buy a townhouse （別墅）.她將去買一幢別墅.
Is She going to buy a townhouse Yes ,she is .她將去買一幢別墅嗎?是的.
現(xiàn)在完成時(shí) liming have finished reading this book.李明看完了這本書.
Have liming finished reading this book?Yes he have李明看完這本書了嗎?是的.