A.as soon as | B.unless | C.as far as | D.until |
A.but | B.and | C.still | D.so |
A.even thought | B.as if | C.so that | D.in case |
A.If | B.Since | C.Though | D.When |
A.before | B.after | C.when | D.as |
A.when; as | B.how; as | C.how; when | D.how; while |
© 2017-2019 超级试练试题库,All Rights Reserved.