A.taken off | B.to take off | C.take off | D.taking off |
A.to change; to be | B.to change; being |
C.changing; being | D.changing; to be |
A.Surrounded | B.surrounding | C.havingsurrounded | D.havingbeensurrounded |
A.taking | B.taken | C.hasbeentaken | D.beingtaken |
A.finished | B.hadbeenfinished | C.finishing | D.tofinish |
A.tosupply | B.supplied | C.supplying | D.havingsupplied |
© 2017-2019 超级试练试题库,All Rights Reserved.