63-(27+19)  и 63-(27-19) наити решения разными способами

You make me laugh

She never lets me go to the river alone

I will make you apologise

Mother does not let little Johnny stay up late

My parents let my elder brother read whatever he likes

Henry is cousin never makes him iron his clothes

My granny always makes me clean up my room

Liza is parents let her have parties in their house

Сделать в пассивнос залоге

Make these sentences passive.

а)x^2-y^2-x-y

b)a^2+a+2*b-4*b^2

c)b^2*c^2-4bc-20b-25b^2

d)16n^2-20n+35k-49k^2 

Некоторые растения деревьев и кустарников зацветают ранней весной,до распускания у них листьев.Какое это имеет значение для растений?