When you ride a bike, always wear...
wear a helmet.
When you go swimming at the pool, always put...
put on sunscreen.
When you are on a plane, always fasten...
fasten your seatbelt.
in-line / isn't / he / skating / at / good.
He isn't good at in-line skating.
climbing / he / likes
He likes climbing.
birds / likes / watching / she.
She likes watching birds.
good / is / he / surfing / at.
He is good at surfing.
is / he / ice-skating / at / good.
He is good at ice-skating.
