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you mustn't open the door for a stranger. a stranger should trick you. you might answer the phone. you don't have to tell everybody that you are home alone . you must know your parents' phone number. it have to be wise to know your neighbours .

1)listen,ivan sings in neighboring room.

2)he doesn't see that i look at him as

he reads something with great interest

3)call him now,i thik he still doesn't

sleep.

4)look at the person who sits by window

w.it's our lowyer.