A.might | B.can | C.Must | D.may |
A.shall be | B.should have been | C.must be | D.might have been |
A.could | B.would | C.were able to | D.ought to |
A.have been achieved | B.were achieving | C.had achieved | D.am achieving |
A.should | B.could | C.must | D.might |
A.took | B.have taken | C.had taken | D.are taking |
© 2017-2019 超级试练试题库,All Rights Reserved.