A.is being done | B.does | C.is doing | D.is done |
A.saw | B.has seen | C.sees | D.had seen |
A.is used | B.are used | C.has used | D.have used |
A.had traveled | B.will travel | C.have been traveling | D.was traveling |
A.there were | B.has there been | C.there has been | D.were there |
A.transformed | B.entered | C.regarded | D.Issued |
© 2017-2019 超级试练试题库,All Rights Reserved.