change these sentences into passive voice:

1, he didn't invite her to his wedding party.

=>.........................................................................

2, tom has finished the work.

=>..................................................

3, they changed the window of the laboratory.

=>.........................................................................

4, she is going to write some poems.

=>...............................................................................

5, she often makes chung cakes for the party?

=>.............................................................

1, rewrite these sentences without changing the meanings

1, how long have they waited for the doctor ?

=> how long................................................................................................................................

2, what time can they boys hand in the papers ?

=> what time.........................................................................................................

3, what books are people reading this year?

=>.......................................................................................................................................................

4,professor brown is teaching that course this semester.

=> that course..............................................................................................

5, who are they keeping in the kitchen?

=>.............................................................................................................................................

viet lai cau

11 i didn't eat lunch , i feel hungry now

=>if i................................................................

12 it hadn't rained , we would have a better crop

=>but for ..................................................................

13 i only come if they invite me

=> unless .......................................................................

13 he didn't revise all his lessons , he failed the exam

=>if he ...............................................................................

14 his sister sent her money , so he continued to study

=>but for .......................................................................

15 the park is over there , only 5 minutes walk

=>if you walk ........................................................

16 in case it rain , we'll stay at home

=> if it .................................................

17 let me give you my advice . you should cut down on smoking right now

=> if i ......................................................................................................................

18leave me alone or i'll call the police

=>unless ............................................................

19 if you arrive at the office earlier than i do , please turn on the air -conditioner

=> should ...................................................................................................................

\20 the children don't go to school in the snowy weather

=>if it .................................................................................

21` he died so young otherwise , he would be a famous musician by now

=> had ................................................................................................................

22 you must tell me the whole truth or i won't help you

=> unless ...........................................................................

23 the car breaks down so often because you don't take good care of it

=> were i ....................................................................................................