Anauthorizationfromtheheadofhumanresourcesdepartmentisneededfor_____toeachemployee'spersonnelfiles.A)accessingB)accessC)accessoryD)accessedThehotelhasroomsavailableforanyonewhoplanon____inDetroitdurin

　　Anauthorizationfromtheheadofhumanresourcesdepartmentisneededfor_____ toeachemployee's personnelfiles.

　　A)accessing B)access C)accessoryD)accessed

　　Thehotelhasroomsavailableforanyonewhoplanon____ in Detroitduringtheannualconference.

　　A)stay B)tostayC)staying D)stayed

　　第一题选B,第二题选C,第一题答案上的解释是“空格前面是for,所以要填入名词”,我没有理解.还有第二题是不是就是planondoingsth.