A.while devoting | B.while devoting himself |
C.while he was devoted | D.while devoted |
A.Though he is careful teacher | B.As he is careful |
C.A careful teacher as he is | D.Being a careful teacher |
A.If so | B.If not | C.Unless so | D.Unless not |
A.earning livings | B.earning his living | C.to earn livings | D.to earn his living |
A.As sad it is | B.It is as sad | C.Sad as it is | D.Sad as is it |
© 2017-2019 超级试练试题库,All Rights Reserved.