20. The continuous rain _____ the harvesting of the wheat crop by two weeks.
A. set back B. set off C. set out D. set aside
21. Having decided to rent a flat, we _____ contacting all the accommodation agencies in the city.
A. set about B. set down C. set out D. set up
22. This issue will be discussed in ____ in Unit 5.
A. order B. detail C. return D. secret
23. Please don’t ____ any details, however trivial they may seem.
A. admit B. permit C. submit D. omit
24. His wife and kids were forced to _____ with friends until they found a place of their own.
A. dwell B. inhabit C. lodge D. occupy
25. The court found him _____ and he was released.
A. guilty B. innocent C. mature D. false
26. The new appointment of our president _____ from the very beginning of next semester.
A. takes effect B. takes part C. takes place D. takes turns
27. Frequently single-parent children ________ some of the functions that the absent adult in the house would have served.
A. take off B. take after C. take in D. take on
28. Our son doesn't know what to ______ at the university; he can't make up his mind about his future.
A. take in B. take up C. take over D. take after
29. Whenever a big company ______ a small one, the product almost always gets worse.
A. gets on with B. cuts down C. takes over D. puts up with
30. His wife is constantly finding with him, which makes him very angry.
A. errors B. slips C. fault D. mistakes
參考答案:aadcadaaccd