ANSWERS 1:TO
PREFER + NOUN + TO + NOUN
PREFERENCES Examples: He prefers ice hockey than football.X
He prefers ice hockey to football. VPREFER STH TO STH
ANSWERS 2:WASHING
TAKE + INFINITIVE => SPEND + GERUND
IT TAKES (QUANTITY + TIME) TO + INVINITIVE + TO => I SPEND (QUANTITY + TIME) + GERUND Examples: I spent three days to clean my flat.X
I spent three days cleaning my flat. VSPEND (QUANTITY + TIME) GERUND
ANSWERS 3:SO
SO => used to say that someone does something because of the reason just stated.
CONJUNCTION Examples: He was feeling hungry, and he made himself a pizza. X
He was feeling hungry, so he made himself a pizza. VSO + VERB
ANSWERS 4:TO GO USED TO + INFINITIVE => habit in the past.
MODAL VERB Examples: He use to smoke 20 cigarettes a day. X
He used to smoke 20 cigarettes a day. VUSED TO + INFINITIVE
ANSWERS 5:ON HIS
ON YOUR OWN => without help, alone, without anyone else.
IDIOM Examples: My brother-in-law did it all by his own.X
My brother-in-law did it all on his own.VON + ONE'S + OWN