A.so that | B.even if | C.before | D.Because |
A.if | B.when | C.as | D.Since |
A.when | B.whether | C.what | D.where |
A.as | B.as though | C.as well | D.even though |
A.either | B.though | C.meanwhile | D.as well |
A.until | B.before | C.since | D.after |
© 2017-2019 超级试练试题库,All Rights Reserved.