A.so that | B.because |
C.before | D.or else |
A.unless | B.since | C.although | D.when |
A.unless | B.since |
C.although | D.when |
A.when | B.unless |
C.after | D.until |
A.As long as | B.As far as |
C.As well as | D.As often as |
A.until | B.when |
C.before | D.as |
© 2017-2019 超级试练试题库,All Rights Reserved.