_______foralongtime,mostofthecropsinthisareadiedfromlackingwater.
Somepersonsgaingoalanddirectionfromtheirtensions;others________underpressure.
Accordingtothe"principles-and-parameters"theory,"principles"refertohighlyabstractpropertiesofgrammarwhichareappliedtolanguageingeneralandwhichgeneratephrasesandatthesametimerestrainthepowerofMovea,while"parameters"allowgeneralprinciplestooperateincertainrestrictedways,accordingtowhichparticulargrammarsofnaturallanguagesvary.
Thereisadeadlock(僵局)inthediscussionwhenneithersidegives________totheother.