The thief took away the woman ’s wallet without ________.
A、beingseenA
without是介詞，其后的動詞必須用動名詞形式。根據(jù)句意，此句需要用被動形式，所以答案是A。
If you are walking away from a clock tower ，you will hear the ticking of the clock fade to a point ________ it cannot be heard.
Werefertothelimitedrangeofsoundsasthephonicmediumoflanguageandindividualsoundswithinthatrangeas______.
Accordingtothe"principles-and-parameters"theory,"principles"refertohighlyabstractpropertiesofgrammarwhichareappliedtolanguageingeneralandwhichgeneratephrasesandatthesametimerestrainthepowerofMovea,while"parameters"allowgeneralprinciplestooperateincertainrestrictedways,accordingtowhichparticulargrammarsofnaturallanguagesvary.
I asked him to ________ me a few minutes so that we could go over all the problems.
Thethieftookawaythewoman’swalletwithout________.
