A.learning; do | B.learning; to do | C.to learn; doing | D.to learn; to do |
A.to blind | B.blinded | C.blinding | D.having blinded |
A.is to be blamed | B.to blame | C.should blame | D.to be blamed |
A.To take | B.to be taken | C.taking | D.being taken |
A.settling | B.settled | C.to settle | D.having settled |
A.to turn | B.being turned | C.turning | D.having turned |
© 2017-2019 超级试练试题库,All Rights Reserved.