Viết lại câu:
1. The holiday was so exspensive that we could only affored one week 
an
it was.................................that we could only affored one week
2. You shouldn't turn off your computer until you have closed all the progams
before
close all the programs .................................your computer
3 why isn't the government informing people about this problem
informed
why...........................................about this problem by the government
4 i am interested in why you did it
is 
the only thing ..............................................why you did it
5 i'm sorry i didn't look at the hotel room before i looked it
regret
i......................................................the hotel room before i looked it
6 people wailed more fifty years ago then they do now 
would
fifty yaers ago,...................................then they do now
7 first of all, the director explained the reason for the meeting
began
the director........................................the reason for the meeting
8 i didn't understand maths when i was at school
used
i........................................................maths when i was at school
9 alan doesn't need to confirm his dentist's appointment
necessary
it...........................................to confirm his dentist's appoinment