A、 be thrown away
B、 have thrown away
C、 have been thrown away
D、 throw away
答案：C
A、 be thrown away
B、 have thrown away
C、 have been thrown away
D、 throw away
答案：C
A. do
B. didn＇t do
C. don＇t
D. didn＇t
A. to sit
B. to sit on
C. for me to sit
D. for sitting
A. break away from
B. get rid of
C. come up with
D. knock down
解析：解析:break away from 1.挣脱 The prisoner broke away from his guards. 2. 脱离某政党、政府等 A province has broken away to form a new state.解析:get rid of: 摆脱 The shop ordered 20 copies of the book and now it can＇t get rid of them.Come up with sth.: 找到或提出答案:、办法等)She came up with a new idea for increasing sales.解析:knock down: 拆除 These old houses are going to be knocked down.
A. had waited after
B. had been waiting since
C. was waiting from
D. had been waiting for
解析：解析:等某人 wait for sb.解析:for接一段延续的时间,since接过去时间状语或过去时句子。
A. build in
B. build into
C. build on
D. build up
