11.29时态、语态练习_动词的时态 11.29时态、语态练习 1.“ I don’t like to travel.”“Have you ever _____ in an airplane?” a. flying b. flew c. flowed d. flown 2. The center of gravity o... /
2010-06-08 / 查看
393 次
12.1 let的用法-动词的语态 12.1 let的用法 1)当let后只要一个单音节动词,变主动语态时,可用不带to的不定式。例如: They let the strange go.他们放目生人走了。 ---" The strange was let g... /
2010-06-08 / 查看
244 次
5.4助动词have的用法-动词 5.4助动词have的用法 1)have +过往分词,组成完成时态。例如: He has left for London.他已往了伦敦。 By the end of last month, they had finished half of their work.... /
2010-06-08 / 查看
399 次