It’s time to go to bed,Jack.—-OK._________, Mom.

下列各句中，加点的成语使用不恰当的一项是（ ）

He had to help his parents ________ on the farm on weekends.

stronauts return to the earth’satmosphere, helicopters fly to________they would land, ready to collect them

Mum,could I go to play basketball with my friends–________.But don’t stay out late.