A.can; must | B.can; may | C.must; can | D.may; must |
A.would | B.might | C.should | D.could |
A.will | B.should | C.am going to | D.am to |
A.must be taken | B.might take | C.can be taken | D.should be taken |
A.could have finished | B.had better finish |
C.must have finished | D.should have finished |
A.can | B.would | C.may | D.Must |
© 2017-2019 超级试练试题库,All Rights Reserved.