I was spending the night in a beautiful house ..... my friend lives. The bedroom was big and dark .... we left the nightlight on. I was  looking at my friends doll collection .... suddenly one of the dolls turned her head, pointed at me, ..... then clenched her fist. I  scremed .... nothing happened. I couldnt sleep all night ..... I was too scaref.
поставте место пропусков слова::
where, because, but, so, when 

where

so

when

(pointed at me, ..... then clenched <-- здесь ничего не пропало, даже не есть столько слов )

but

because

I was spending the night in a beautiful house where my friend lives. The bedroom was big and dark so we left the nightlight on. I was liikong at my friends doll collection when suddenly one of the dolls turned her head, pointed at me, _____ then clenched her fist. I scremed but nothing happened. I couldnt sleep all night because I was too scared.